diff --git a/web/app/math/math.js b/modules/math/commons.js
similarity index 98%
rename from web/app/math/math.js
rename to modules/math/commons.js
index d3a7f05f..4ca7a890 100644
--- a/web/app/math/math.js
+++ b/modules/math/commons.js
@@ -1,8 +1,8 @@
 import Vector from 'math/vector';
-import BBox from './bbox'
+import BBox from '../../web/app/math/bbox'
 import * as vec from 'math/vec';
 import {perp2d} from "math/vec";
-import {eqTol} from "../brep/geom/tolerance";
+import {eqTol} from "../../web/app/brep/geom/tolerance";
 
 export const TOLERANCE = 1E-6;
 export const TOLERANCE_SQ = TOLERANCE * TOLERANCE;
diff --git a/modules/math/vector.ts b/modules/math/vector.ts
index b469625c..cb9b50ff 100644
--- a/modules/math/vector.ts
+++ b/modules/math/vector.ts
@@ -1,4 +1,4 @@
-import {clamp} from "../../web/app/math/math";
+import {clamp} from "math/commons";
 
 export default class Vector {
 
diff --git a/modules/scene/objects/meshLine.js b/modules/scene/objects/meshLine.js
index 92342879..47223be8 100644
--- a/modules/scene/objects/meshLine.js
+++ b/modules/scene/objects/meshLine.js
@@ -1,5 +1,5 @@
 import * as vec from 'math/vec';
-import {perpendicularVector} from '../../../web/app/math/math';
+import {perpendicularVector} from '../../math/commons';
 import {Face3, Geometry, Vector3} from 'three';
 
 export function createMeshLineGeometry(points, width) {
diff --git a/test/coreTests/subjects/sketcherTPI.js b/test/coreTests/subjects/sketcherTPI.js
index 6a7da9b6..2babc135 100644
--- a/test/coreTests/subjects/sketcherTPI.js
+++ b/test/coreTests/subjects/sketcherTPI.js
@@ -1,6 +1,6 @@
 import * as sketcher_utils from '../utils/sketcherUtils'
 import {genSerpinskiImpl} from '../../../web/app/utils/genSerpinski';
-import {distance} from '../../../web/app/math/math';
+import {distance} from 'math/commons';
 
 export function createSubjectFromInPlaceSketcher(ctx) {
   return createSketcherTPI(ctx.services.sketcher.inPlaceEditor.sketcherAppContext);
diff --git a/web/app/brep/brep-enclose.js b/web/app/brep/brep-enclose.js
index e72b8baa..09ee2702 100644
--- a/web/app/brep/brep-enclose.js
+++ b/web/app/brep/brep-enclose.js
@@ -5,7 +5,7 @@ import BrepCurve from './geom/curves/brepCurve';
 import {Plane} from './geom/impl/plane';
 import {BasisForPlane} from 'math/l3space';
 import * as cad_utils from '../cad/cad-utils';
-import * as math from '../math/math';
+import * as math from '../../../modules/math/commons';
 import {createBoundingSurface} from './brep-builder';
 import NurbsSurface from './geom/surfaces/nurbsSurface';
 import {BrepSurface} from './geom/surfaces/brepSurface';
diff --git a/web/app/brep/debug/debugger/utils.jsx b/web/app/brep/debug/debugger/utils.jsx
index 46df428c..44db4cf3 100644
--- a/web/app/brep/debug/debugger/utils.jsx
+++ b/web/app/brep/debug/debugger/utils.jsx
@@ -3,7 +3,7 @@ import {
   AQUA, BLACK, BLUE, cycleColor, DETECTED_EDGE, DISCARDED_EDGE, GREEN, RED, SALMON, WHITE,
   YELLOW
 } from "./colors";
-import {distanceAB3} from "../../../math/math";
+import {distanceAB3} from "../../../../../modules/math/commons";
 import Section from "./section";
 
 export function getFacesViewObjects(group3d, category, context, out, faces) {
diff --git a/web/app/brep/geom/curves/brepCurve.ts b/web/app/brep/geom/curves/brepCurve.ts
index c8a65afb..9e7de511 100644
--- a/web/app/brep/geom/curves/brepCurve.ts
+++ b/web/app/brep/geom/curves/brepCurve.ts
@@ -1,6 +1,6 @@
 import NurbsCurve from "./nurbsCurve";
 import {Vec3} from 'math/l3space'
-import {areEqual} from '../../../math/math'
+import {areEqual} from 'math/commons'
 
 import {eqSqTol, ueq, veq, veq3, veqNeg} from "../tolerance";
 import curveIntersect from "../impl/curve/curves-isec";
diff --git a/web/app/brep/geom/curves/frenetFrame.js b/web/app/brep/geom/curves/frenetFrame.js
index 10eee36a..849ac81b 100644
--- a/web/app/brep/geom/curves/frenetFrame.js
+++ b/web/app/brep/geom/curves/frenetFrame.js
@@ -1,5 +1,5 @@
 import * as vec from 'math/vec';
-import {perpendicularVector} from '../../../math/math';
+import {perpendicularVector} from '../../../../../modules/math/commons';
 
 export function frenetFrame(D1, D2) {
   let T = vec.normalize(D1);
diff --git a/web/app/brep/geom/impl/curve/curves-isec.js b/web/app/brep/geom/impl/curve/curves-isec.js
index d5c4e7d4..21bb3f4e 100644
--- a/web/app/brep/geom/impl/curve/curves-isec.js
+++ b/web/app/brep/geom/impl/curve/curves-isec.js
@@ -1,6 +1,6 @@
 import * as vec from "math/vec";
 import {TOLERANCE, TOLERANCE_SQ} from '../../tolerance';
-import * as math from  '../../../../math/math'
+import * as math from '../../../../../../modules/math/commons'
 import {fmin_bfgs} from "../../../../math/optim";
 
 export default function curveIntersect(curve1, curve2, isecRange1, isecRange2, tesselator) {
diff --git a/web/app/brep/geom/impl/nurbs-ext.ts b/web/app/brep/geom/impl/nurbs-ext.ts
index fadbef89..5bb89888 100644
--- a/web/app/brep/geom/impl/nurbs-ext.ts
+++ b/web/app/brep/geom/impl/nurbs-ext.ts
@@ -1,5 +1,5 @@
 import * as vec from "math/vec";
-import * as math from  '../../../math/math'
+import * as math from 'math/commons'
 import {eqEps, TOLERANCE, TOLERANCE_01, TOLERANCE_SQ} from '../tolerance';
 import {fmin_bfgs} from "../../../math/optim";
 import {Vec3} from "math/l3space";
diff --git a/web/app/brep/geom/tolerance.ts b/web/app/brep/geom/tolerance.ts
index 21e2e6f6..9d786fbe 100644
--- a/web/app/brep/geom/tolerance.ts
+++ b/web/app/brep/geom/tolerance.ts
@@ -1,4 +1,4 @@
-import {areEqual, areNegVectorsEqual, areVectorsEqual, areVectorsEqual3, distanceSquared3} from '../../math/math';
+import {areEqual, areNegVectorsEqual, areVectorsEqual, areVectorsEqual3, distanceSquared3} from 'math/commons';
 
 export const TOLERANCE = 1e-3;
 export const TOLERANCE_SQ = TOLERANCE * TOLERANCE;
diff --git a/web/app/brep/null-face-merge.js b/web/app/brep/null-face-merge.js
index a98d3a5b..8ff9e28c 100644
--- a/web/app/brep/null-face-merge.js
+++ b/web/app/brep/null-face-merge.js
@@ -1,4 +1,4 @@
-import * as math from '../math/math'
+import * as math from '../../../modules/math/commons'
 import {Edge} from './topo/edge'
 
 export default function({curve, start}) {
diff --git a/web/app/brep/operations/boolean.js b/web/app/brep/operations/boolean.js
index db7ed553..35cef7f4 100644
--- a/web/app/brep/operations/boolean.js
+++ b/web/app/brep/operations/boolean.js
@@ -4,7 +4,7 @@ import {Loop} from '../topo/loop';
 import {Shell} from '../topo/shell';
 import {Vertex} from '../topo/vertex';
 import {evolveFace} from './evolve-face'
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {eqTol, TOLERANCE, ueq, veq, veqNeg} from '../geom/tolerance';
 import CadError from "../../utils/errors";
 import {createBoundingSurface} from "../brep-builder";
diff --git a/web/app/brep/operations/evolve-face.js b/web/app/brep/operations/evolve-face.js
index 37efa045..e2cd3bc9 100644
--- a/web/app/brep/operations/evolve-face.js
+++ b/web/app/brep/operations/evolve-face.js
@@ -1,7 +1,7 @@
 import {Face} from '../topo/face';
 import {Vertex} from '../topo/vertex';
 import Vector from 'math/vector';
-import {isCCW} from '../../math/math';
+import {isCCW} from '../../../../modules/math/commons';
 import PIP from '../../cad/tess/pip';
 
 export function evolveFace(originFace, loops) {
diff --git a/web/app/brep/topo/loop.ts b/web/app/brep/topo/loop.ts
index 6aa66a59..cc4d6794 100644
--- a/web/app/brep/topo/loop.ts
+++ b/web/app/brep/topo/loop.ts
@@ -1,6 +1,6 @@
 import {TopoObject} from './topo-object'
 
-import * as math from '../../math/math'
+import * as math from 'math/commons'
 import {Face} from "./face";
 import {BrepSurface} from "../geom/surfaces/brepSurface";
 import {HalfEdge} from "./edge";
diff --git a/web/app/brep/utils/pickPointInPolygon.js b/web/app/brep/utils/pickPointInPolygon.js
index a4be06b3..3bba0ef8 100644
--- a/web/app/brep/utils/pickPointInPolygon.js
+++ b/web/app/brep/utils/pickPointInPolygon.js
@@ -1,5 +1,5 @@
 import libtess from 'libtess'
-import {area} from "../../math/math";
+import {area} from "../../../../modules/math/commons";
 
 export default function pickPointInside2dPolygon(polygon) {
   function vertexCallback(data, tr) {
diff --git a/web/app/cad/assembly/dof/EEDOF.ts b/web/app/cad/assembly/dof/EEDOF.ts
index a1d1e52a..c9a84bdb 100644
--- a/web/app/cad/assembly/dof/EEDOF.ts
+++ b/web/app/cad/assembly/dof/EEDOF.ts
@@ -4,7 +4,7 @@ import {eqTol} from "../../../brep/geom/tolerance";
 import {FaceTouchAlignConstraint} from "../constraints/faceTouchAlign";
 import {Plane} from './../../../brep/geom/impl/plane';
 import {AssemblyDOF, ModificationResponse} from "./assemblyDOF";
-import {areEqual, clamp, DEG_RAD, lineLineIntersection2d, lineLineIntersection} from "../../../math/math";
+import {areEqual, clamp, DEG_RAD, lineLineIntersection2d, lineLineIntersection} from "math/commons";
 import {ConflictDOF} from "./conflictDOF";
 import {PPPPDOF} from "./PPPPDOF";
 import {EdgeAlignConstraint} from "../constraints/edgeAlign";
diff --git a/web/app/cad/assembly/dof/PPDOF.ts b/web/app/cad/assembly/dof/PPDOF.ts
index 7de9a2f3..006fabda 100644
--- a/web/app/cad/assembly/dof/PPDOF.ts
+++ b/web/app/cad/assembly/dof/PPDOF.ts
@@ -4,7 +4,7 @@ import {eqTol} from "../../../brep/geom/tolerance";
 import {FaceTouchAlignConstraint} from "../constraints/faceTouchAlign";
 import {Plane} from './../../../brep/geom/impl/plane';
 import {ANGULAR_ALLOWANCE, AssemblyDOF, ModificationResponse} from "./assemblyDOF";
-import {areEqual, clamp, DEG_RAD} from "../../../math/math";
+import {areEqual, clamp, DEG_RAD} from "math/commons";
 import {ConflictDOF} from "./conflictDOF";
 import {PPPPDOF} from "./PPPPDOF";
 import {EdgeAlignConstraint} from "../constraints/edgeAlign";
diff --git a/web/app/cad/assembly/dof/assemblyDOF.ts b/web/app/cad/assembly/dof/assemblyDOF.ts
index 154930b1..7da910ac 100644
--- a/web/app/cad/assembly/dof/assemblyDOF.ts
+++ b/web/app/cad/assembly/dof/assemblyDOF.ts
@@ -1,7 +1,7 @@
 import Vector from "math/vector";
 import {FaceTouchAlignConstraint} from "../constraints/faceTouchAlign";
 import {EdgeAlignConstraint} from "../constraints/edgeAlign";
-import {DEG_RAD} from "../../../math/math";
+import {DEG_RAD} from "math/commons";
 import {Matrix3} from "math/matrix";
 
 export const ANGULAR_ALLOWANCE = 10 * DEG_RAD;
diff --git a/web/app/cad/cad-utils.js b/web/app/cad/cad-utils.js
index 7ac57d02..5ec934a3 100644
--- a/web/app/cad/cad-utils.js
+++ b/web/app/cad/cad-utils.js
@@ -1,6 +1,6 @@
 import Vector from 'math/vector';
 import BBox from '../math/bbox'
-import * as math from '../math/math'
+import * as math from '../../../modules/math/commons'
 import {MeshSceneSolid} from './scene/wrappers/meshSceneObject'
 import {Matrix3} from 'math/matrix';
 
diff --git a/web/app/cad/craft/cutExtrude/cutExtrude.js b/web/app/cad/craft/cutExtrude/cutExtrude.js
index ce23cdda..3854c598 100644
--- a/web/app/cad/craft/cutExtrude/cutExtrude.js
+++ b/web/app/cad/craft/cutExtrude/cutExtrude.js
@@ -1,4 +1,4 @@
-import * as math from '../../../math/math'
+import * as math from '../../../../../modules/math/commons'
 import {enclose} from '../../../brep/brep-enclose'
 import {BooleanOperation, combineShells} from '../booleanOperation'
 import {Matrix3} from 'math/matrix';
diff --git a/web/app/cad/craft/datum/rotate/rotateDatumOperation.js b/web/app/cad/craft/datum/rotate/rotateDatumOperation.js
index de682573..079cd54e 100644
--- a/web/app/cad/craft/datum/rotate/rotateDatumOperation.js
+++ b/web/app/cad/craft/datum/rotate/rotateDatumOperation.js
@@ -2,7 +2,7 @@ import schema from './rotateDatumOpSchema';
 import {MDatum} from '../../../model/mdatum';
 import RotateDatumWizard from './RotateDatumWizard';
 import {ORIGIN} from '../../../../../../modules/math/l3space';
-import {DEG_RAD} from '../../../../math/math';
+import {DEG_RAD} from '../../../../../../modules/math/commons';
 import {Matrix3} from "../../../../../../modules/math/matrix";
 
 
diff --git a/web/app/cad/craft/revolve/revolvePreviewer.js b/web/app/cad/craft/revolve/revolvePreviewer.js
index dc7fbcef..df6389fc 100644
--- a/web/app/cad/craft/revolve/revolvePreviewer.js
+++ b/web/app/cad/craft/revolve/revolvePreviewer.js
@@ -1,5 +1,5 @@
 import {createMeshGeometry} from 'scene/geoms';
-import {DEG_RAD} from '../../../math/math';
+import {DEG_RAD} from '../../../../../modules/math/commons';
 import {revolveToTriangles} from '../../legacy/mesh/revolve';
 
 let cache = {};
diff --git a/web/app/cad/legacy/mesh/revolve.js b/web/app/cad/legacy/mesh/revolve.js
index cd8dce36..309b75c1 100644
--- a/web/app/cad/legacy/mesh/revolve.js
+++ b/web/app/cad/legacy/mesh/revolve.js
@@ -1,5 +1,5 @@
 import Vector from 'math/vector';
-import * as math from '../../../math/math'
+import * as math from '../../../../../modules/math/commons'
 import {createShared} from '../../cad-utils'
 import {TriangulatePolygons} from '../../tess/triangulation';
 import {Matrix3} from "../../../../../modules/math/matrix";
diff --git a/web/app/cad/legacy/mesh/workbench.js b/web/app/cad/legacy/mesh/workbench.js
index 218059e3..ad10a29c 100644
--- a/web/app/cad/legacy/mesh/workbench.js
+++ b/web/app/cad/legacy/mesh/workbench.js
@@ -1,6 +1,6 @@
 import Vector from 'math/vector';
 import * as cad_utils from '../../cad-utils'
-import * as math from '../../../math/math'
+import * as math from '../../../../../modules/math/commons'
 import {HashTable} from '../../../utils/hashmap'
 import {Mesh} from '../mesh'
 import revolve from './revolve'
diff --git a/web/app/cad/scene/wrappers/brepSceneObject.js b/web/app/cad/scene/wrappers/brepSceneObject.js
index 92ace9bc..8c411443 100644
--- a/web/app/cad/scene/wrappers/brepSceneObject.js
+++ b/web/app/cad/scene/wrappers/brepSceneObject.js
@@ -4,7 +4,7 @@ import brepTess from '../../tess/brep-tess';
 import tessellateSurface from '../../../brep/geom/surfaces/surfaceTess';
 import {setAttribute} from '../../../../../modules/scene/objectData';
 import * as vec from 'math/vec';
-import {perpendicularVector} from '../../../math/math';
+import {perpendicularVector} from '../../../../../modules/math/commons';
 
 const SMOOTH_RENDERING = true;
 
diff --git a/web/app/cad/sketch/sketchBoundaries.js b/web/app/cad/sketch/sketchBoundaries.js
index 6d4faa66..465d8d78 100644
--- a/web/app/cad/sketch/sketchBoundaries.js
+++ b/web/app/cad/sketch/sketchBoundaries.js
@@ -1,4 +1,4 @@
-import {areEqual, circleFromPoints, distanceAB, radiusOfCurvature, TOLERANCE} from '../../math/math';
+import {areEqual, circleFromPoints, distanceAB, radiusOfCurvature, TOLERANCE} from '../../../../modules/math/commons';
 import * as vec from 'math/vec';
 import {iteratePath} from '../cad-utils';
 import NurbsCurve from '../../brep/geom/curves/nurbsCurve';
diff --git a/web/app/cad/sketch/sketchModel.js b/web/app/cad/sketch/sketchModel.js
index d065ff40..ca7f8e86 100644
--- a/web/app/cad/sketch/sketchModel.js
+++ b/web/app/cad/sketch/sketchModel.js
@@ -3,7 +3,7 @@ import BrepCurve from '../../brep/geom/curves/brepCurve';
 import NurbsCurve from '../../brep/geom/curves/nurbsCurve';
 import {Point} from '../../brep/geom/point'
 import {LUT} from '../../math/bezier-cubic'
-import {distanceAB, isCCW, makeAngle0_360} from '../../math/math'
+import {distanceAB, isCCW, makeAngle0_360} from '../../../../modules/math/commons'
 import {normalizeCurveEnds} from '../../brep/geom/impl/nurbs-ext';
 import Vector from '../../../../modules/math/vector';
 import {AXIS, ORIGIN} from '../../../../modules/math/l3space';
diff --git a/web/app/cad/sketch/sketchReader.js b/web/app/cad/sketch/sketchReader.js
index 6dda629d..c24ae084 100644
--- a/web/app/cad/sketch/sketchReader.js
+++ b/web/app/cad/sketch/sketchReader.js
@@ -1,6 +1,6 @@
 import * as sm from './sketchModel'
 import {Graph} from '../../math/graph'
-import * as math from '../../math/math'
+import * as math from '../../../../modules/math/commons'
 import {HashTable} from '../../utils/hashmap'
 import Joints from '../../../../modules/gems/joints';
 import sketchObjectGlobalId from './sketchObjectGlobalId';
diff --git a/web/app/cad/tess/nested-loops.js b/web/app/cad/tess/nested-loops.js
index 5568cdf9..8ce4b69d 100644
--- a/web/app/cad/tess/nested-loops.js
+++ b/web/app/cad/tess/nested-loops.js
@@ -1,5 +1,5 @@
 import pip from "./pip";
-import {isCCW} from "../../math/math";
+import {isCCW} from "../../../../modules/math/commons";
 
 export default function(loops) {
   const loops = loops.map(loop => new NestedLoop(loop));
diff --git a/web/app/cad/tess/pip.js b/web/app/cad/tess/pip.js
index e3a7f723..85a38154 100644
--- a/web/app/cad/tess/pip.js
+++ b/web/app/cad/tess/pip.js
@@ -1,4 +1,4 @@
-import {areEqual} from "../../math/math";
+import {areEqual} from "../../../../modules/math/commons";
 
 export default function(outerLoop, innerLoops, tol) {
 
diff --git a/web/app/math/optim.js b/web/app/math/optim.js
index efbabb8d..03fa55e1 100644
--- a/web/app/math/optim.js
+++ b/web/app/math/optim.js
@@ -1,5 +1,5 @@
 import numeric from 'numeric';
-import {_vec, _matrix} from './math'
+import {_vec, _matrix} from '../../../modules/math/commons'
 
 const SUCCESS = 1, ITER_LIMIT = 2, SMALL_DELTA = 3, SMALL_STEP = 4, DIVERGENCE = 5, INVALID_STATE = 6;
 
diff --git a/web/app/math/qr.js b/web/app/math/qr.js
index 439dc230..05b56fc7 100644
--- a/web/app/math/qr.js
+++ b/web/app/math/qr.js
@@ -1,5 +1,5 @@
 import {fillArray} from '../utils/utils'
-import * as math from './math'
+import * as math from '../../../modules/math/commons'
 
 /** @constructor */
 function QR(matrix) {
diff --git a/web/app/sketcher/constr/ANConstraints.ts b/web/app/sketcher/constr/ANConstraints.ts
index d2ab0d1b..1280180e 100644
--- a/web/app/sketcher/constr/ANConstraints.ts
+++ b/web/app/sketcher/constr/ANConstraints.ts
@@ -1,5 +1,5 @@
 import {Param} from '../shapes/param';
-import {DEG_RAD, distanceAB, makeAngle0_360} from "../../math/math";
+import {DEG_RAD, distanceAB, makeAngle0_360} from "math/commons";
 import {COS_FN, Polynomial, POW_1_FN, POW_2_FN, POW_3_FN, SIN_FN} from "./polynomial";
 
 import {cubicBezierDer1, cubicBezierDer2, cubicBezierPoint} from "../../brep/geom/curves/bezierCubic";
diff --git a/web/app/sketcher/constr/barriers.js b/web/app/sketcher/constr/barriers.js
index 85d3c8ed..5ad9fdfb 100644
--- a/web/app/sketcher/constr/barriers.js
+++ b/web/app/sketcher/constr/barriers.js
@@ -1,4 +1,4 @@
-import {sq} from "../../math/math";
+import {sq} from "../../../../modules/math/commons";
 
 export function greaterThanConstraint(val) {
   const K = 100;
diff --git a/web/app/sketcher/constr/residuals.js b/web/app/sketcher/constr/residuals.js
index caa3e888..f2402292 100644
--- a/web/app/sketcher/constr/residuals.js
+++ b/web/app/sketcher/constr/residuals.js
@@ -1,4 +1,4 @@
-import {sq} from "../../math/math";
+import {sq} from "../../../../modules/math/commons";
 
 export function R_Equal(params, [value]) {
 
diff --git a/web/app/sketcher/constraints.js b/web/app/sketcher/constraints.js
index dbf1d26c..a29d0172 100644
--- a/web/app/sketcher/constraints.js
+++ b/web/app/sketcher/constraints.js
@@ -1,5 +1,5 @@
 import {Ref} from './shapes/ref';
-import * as math from '../math/math';
+import * as math from '../../../modules/math/commons';
 import Vector from '../../../modules/math/vector';
 
 class AbstractConstraint {
diff --git a/web/app/sketcher/shapes/arc.ts b/web/app/sketcher/shapes/arc.ts
index af018cb0..6fceefaa 100644
--- a/web/app/sketcher/shapes/arc.ts
+++ b/web/app/sketcher/shapes/arc.ts
@@ -1,9 +1,9 @@
-import * as math from '../../math/math';
+import * as math from 'math/commons';
 import Vector from 'math/vector';
 import {SketchObject, SketchObjectSerializationData} from './sketch-object';
 import {Param} from "./param";
 import {AlgNumConstraint, ConstraintDefinitions} from "../constr/ANConstraints";
-import {makeAngle0_360} from "../../math/math";
+import {makeAngle0_360} from "math/commons";
 import {EndPoint, SketchPointSerializationData} from "./point";
 
 export class Arc extends SketchObject {
diff --git a/web/app/sketcher/shapes/bezier-curve.js b/web/app/sketcher/shapes/bezier-curve.js
index 9f59bd11..a467b7b4 100644
--- a/web/app/sketcher/shapes/bezier-curve.js
+++ b/web/app/sketcher/shapes/bezier-curve.js
@@ -4,7 +4,7 @@ import {LUT} from '../../math/bezier-cubic'
 import {ConvexHull2D} from '../../math/convex-hull'
 
 import * as draw_utils from '../shapes/draw-utils'
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {EndPoint} from "./point";
 
 
diff --git a/web/app/sketcher/shapes/circle.js b/web/app/sketcher/shapes/circle.js
index afd82c10..474097d0 100644
--- a/web/app/sketcher/shapes/circle.js
+++ b/web/app/sketcher/shapes/circle.js
@@ -1,4 +1,4 @@
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {SketchObject} from './sketch-object'
 import {Param} from "./param";
 import {EndPoint} from "./point";
diff --git a/web/app/sketcher/shapes/dim.js b/web/app/sketcher/shapes/dim.js
index 38c34e8a..f54f3fe9 100644
--- a/web/app/sketcher/shapes/dim.js
+++ b/web/app/sketcher/shapes/dim.js
@@ -1,6 +1,6 @@
-import * as math from '../../math/math'
+import * as math from '../../../../modules/math/commons'
 import * as vec from 'math/vec'
-import {DEG_RAD, lineLineIntersection2d, makeAngle0_360, pointToLineSignedDistance} from '../../math/math'
+import {DEG_RAD, lineLineIntersection2d, makeAngle0_360, pointToLineSignedDistance} from '../../../../modules/math/commons'
 import Vector from 'math/vector';
 import {Styles} from "../styles";
 import {TextHelper} from "./textHelper";
diff --git a/web/app/sketcher/shapes/ellipse.js b/web/app/sketcher/shapes/ellipse.js
index e1d2cee9..61ee971c 100644
--- a/web/app/sketcher/shapes/ellipse.js
+++ b/web/app/sketcher/shapes/ellipse.js
@@ -1,6 +1,6 @@
 import {SketchObject} from './sketch-object'
 
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {Param} from "./param";
 import {EndPoint} from "./point";
 
diff --git a/web/app/sketcher/shapes/elliptical-arc.js b/web/app/sketcher/shapes/elliptical-arc.js
index b44543a1..4e448726 100644
--- a/web/app/sketcher/shapes/elliptical-arc.js
+++ b/web/app/sketcher/shapes/elliptical-arc.js
@@ -1,6 +1,6 @@
 import {Ellipse} from './ellipse'
 
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {swap} from '../../utils/utils'
 import {EndPoint} from "./point";
 import {AlgNumConstraint, ConstraintDefinitions} from "../constr/ANConstraints";
diff --git a/web/app/sketcher/shapes/segment.ts b/web/app/sketcher/shapes/segment.ts
index 33daf410..6288e0ec 100644
--- a/web/app/sketcher/shapes/segment.ts
+++ b/web/app/sketcher/shapes/segment.ts
@@ -1,7 +1,7 @@
 import {SketchObject, SketchObjectSerializationData} from './sketch-object'
 import Vector from 'math/vector';
-import * as math from '../../math/math'
-import {DEG_RAD, makeAngle0_360} from '../../math/math'
+import * as math from 'math/commons'
+import {DEG_RAD, makeAngle0_360} from 'math/commons'
 import {Param} from "./param";
 import {AlgNumConstraint, ConstraintDefinitions} from "../constr/ANConstraints";
 import {EndPoint, SketchPointSerializationData} from "./point";
diff --git a/web/app/sketcher/shapes/textHelper.js b/web/app/sketcher/shapes/textHelper.js
index 4ffab136..364249ee 100644
--- a/web/app/sketcher/shapes/textHelper.js
+++ b/web/app/sketcher/shapes/textHelper.js
@@ -1,4 +1,4 @@
-import {_270, _90, makeAngle0_360, pointToLineSignedDistance} from "../../math/math";
+import {_270, _90, makeAngle0_360, pointToLineSignedDistance} from "../../../../modules/math/commons";
 import {_negate} from "math/vec";
 
 export class TextHelper {
diff --git a/web/app/sketcher/tools/arc.js b/web/app/sketcher/tools/arc.js
index f0fc03da..e0dee219 100644
--- a/web/app/sketcher/tools/arc.js
+++ b/web/app/sketcher/tools/arc.js
@@ -2,7 +2,7 @@ import {Arc} from '../shapes/arc'
 import {EndPoint} from '../shapes/point'
 import {Tool} from './tool'
 import Vector from 'math/vector';
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 
 export class AddArcTool extends Tool {
 
diff --git a/web/app/sketcher/tools/bezier-curve.js b/web/app/sketcher/tools/bezier-curve.js
index 78f62441..da48e3fe 100644
--- a/web/app/sketcher/tools/bezier-curve.js
+++ b/web/app/sketcher/tools/bezier-curve.js
@@ -3,7 +3,7 @@ import {EndPoint} from '../shapes/point'
 import {BezierCurve} from '../shapes/bezier-curve'
 import {Constraints} from '../parametric'
 import Vector from 'math/vector';
-import * as math from '../../math/math'
+import * as math from '../../../../modules/math/commons'
 import {AlgNumConstraint, ConstraintDefinitions} from "../constr/ANConstraints";
 
 export class BezierCurveTool extends Tool {
diff --git a/web/app/sketcher/tools/circle.js b/web/app/sketcher/tools/circle.js
index 3b5936e4..20a68b9d 100644
--- a/web/app/sketcher/tools/circle.js
+++ b/web/app/sketcher/tools/circle.js
@@ -1,5 +1,5 @@
 import {Tool} from './tool'
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import {EndPoint} from '../shapes/point'
 import {Circle} from '../shapes/circle'
 
diff --git a/web/app/sketcher/tools/dim.js b/web/app/sketcher/tools/dim.js
index 6b20badd..4b0bb457 100644
--- a/web/app/sketcher/tools/dim.js
+++ b/web/app/sketcher/tools/dim.js
@@ -12,7 +12,7 @@ import {DragTool} from "./drag";
 import {isInstanceOf} from "../actions/matchUtils";
 import {Segment} from "../shapes/segment";
 import {DEFAULT_SEARCH_BUFFER} from "../viewer2d";
-import {distance} from "../../math/math";
+import {distance} from "../../../../modules/math/commons";
 import {_negate, cross2d} from "math/vec";
 
 export class AddDimTool extends Tool {
diff --git a/web/app/sketcher/tools/drag.js b/web/app/sketcher/tools/drag.js
index 23056004..a228877f 100644
--- a/web/app/sketcher/tools/drag.js
+++ b/web/app/sketcher/tools/drag.js
@@ -1,6 +1,6 @@
 import {Tool} from './tool'
 import {optim} from '../../math/optim'
-import * as math from '../../math/math'
+import * as math from '../../../../modules/math/commons'
 import {toast} from "react-toastify";
 
 export class DragTool extends Tool {
diff --git a/web/app/sketcher/tools/fillet.js b/web/app/sketcher/tools/fillet.js
index 64137b88..654a5cd3 100644
--- a/web/app/sketcher/tools/fillet.js
+++ b/web/app/sketcher/tools/fillet.js
@@ -1,7 +1,7 @@
 import Vector from 'math/vector';
 import {Styles} from '../styles'
 import * as fetch from '../fetchers'
-import * as math from '../../math/math'
+import * as math from '../../../../modules/math/commons'
 import {EndPoint} from '../shapes/point'
 import {Arc} from '../shapes/arc'
 import {Constraints} from '../parametric'
diff --git a/web/app/sketcher/tools/offset.js b/web/app/sketcher/tools/offset.js
index 8179b4b3..5f36405d 100644
--- a/web/app/sketcher/tools/offset.js
+++ b/web/app/sketcher/tools/offset.js
@@ -1,6 +1,6 @@
 import {LoopPickTool} from './loop-pick'
 import {Constraints} from '../parametric'
-import * as math from '../../math/math';
+import * as math from '../../../../modules/math/commons';
 import Vector from 'math/vector';
 import {swap} from '../../utils/utils'
 import {EndPoint} from '../shapes/point'