diff --git a/web/app/math/lm.js b/modules/math/optim/lm.js
similarity index 100%
rename from web/app/math/lm.js
rename to modules/math/optim/lm.js
diff --git a/web/app/math/optim.js b/modules/math/optim/optim.js
similarity index 99%
rename from web/app/math/optim.js
rename to modules/math/optim/optim.js
index 03fa55e1..7f779d14 100644
--- a/web/app/math/optim.js
+++ b/modules/math/optim/optim.js
@@ -1,5 +1,5 @@
 import numeric from 'numeric';
-import {_vec, _matrix} from '../../../modules/math/commons'
+import {_vec, _matrix} from 'math/commons'
 
 const SUCCESS = 1, ITER_LIMIT = 2, SMALL_DELTA = 3, SMALL_STEP = 4, DIVERGENCE = 5, INVALID_STATE = 6;
 
diff --git a/web/app/brep/geom/impl/curve/curves-isec.js b/web/app/brep/geom/impl/curve/curves-isec.js
index 21bb3f4e..d442e03f 100644
--- a/web/app/brep/geom/impl/curve/curves-isec.js
+++ b/web/app/brep/geom/impl/curve/curves-isec.js
@@ -1,7 +1,7 @@
 import * as vec from "math/vec";
 import {TOLERANCE, TOLERANCE_SQ} from '../../tolerance';
-import * as math from '../../../../../../modules/math/commons'
-import {fmin_bfgs} from "../../../../math/optim";
+import * as math from 'math/commons'
+import {fmin_bfgs} from "math/optim/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 5bb89888..0dda7b67 100644
--- a/web/app/brep/geom/impl/nurbs-ext.ts
+++ b/web/app/brep/geom/impl/nurbs-ext.ts
@@ -1,7 +1,7 @@
 import * as vec from "math/vec";
 import * as math from 'math/commons'
 import {eqEps, TOLERANCE, TOLERANCE_01, TOLERANCE_SQ} from '../tolerance';
-import {fmin_bfgs} from "../../../math/optim";
+import {fmin_bfgs} from "math/optim/optim";
 import {Vec3} from "math/l3space";
 
 export interface NurbsCurveData {
diff --git a/web/app/sketcher/constr/solver.js b/web/app/sketcher/constr/solver.js
index e095d49f..2f09e5b1 100644
--- a/web/app/sketcher/constr/solver.js
+++ b/web/app/sketcher/constr/solver.js
@@ -1,8 +1,8 @@
 import * as utils from '../../utils/utils'
 import QR from '../../math/qr'
-import LMOptimizer from '../../math/lm'
+import LMOptimizer from 'math/optim/lm'
 import {ConstantWrapper, EqualsTo} from './solverConstraints'
-import {dog_leg} from '../../math/optim'
+import {dog_leg} from 'math/optim/optim'
 import {newVector} from 'math/vec';
 
 
diff --git a/web/app/sketcher/tools/drag.js b/web/app/sketcher/tools/drag.js
index a228877f..899f91c7 100644
--- a/web/app/sketcher/tools/drag.js
+++ b/web/app/sketcher/tools/drag.js
@@ -1,6 +1,5 @@
 import {Tool} from './tool'
-import {optim} from '../../math/optim'
-import * as math from '../../../../modules/math/commons'
+import * as math from 'math/commons'
 import {toast} from "react-toastify";
 
 export class DragTool extends Tool {