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clean up

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Val Erastov (xibyte) 2020-07-18 22:05:24 -07:00
parent 7909cbc674
commit 025f4a94a8
1 changed files with 0 additions and 121 deletions
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web/app/math/matrix.js
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@ -1,121 +0,0 @@
import * as math from 'math'
/**
* @constructor
* @deprecated use numeric library
* */
export function Matrix(r, c) {
this.data = [];
this.rSize = r;
this.cSize = c;
for (var i = 0; i < r; i++) {
this.data[i] = math._vec(c)
}
}
Matrix.prototype.identity = function() {
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
this.data[i][j] = i === j ? 1 : 0;
}
}
};
Matrix.prototype.subtract = function(m) {
var out = new Matrix(this.rSize, this.cSize);
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
out.data[i][j] = this.data[i][j] - m.data[i][j];
}
}
return out;
};
Matrix.prototype.add = function(m) {
var out = new Matrix(this.rSize, this.cSize);
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
out.data[i][j] = this.data[i][j] + m.data[i][j];
}
}
return out;
};
Matrix.prototype.multiply = function(m) {
var nRows = this.rSize;
var nCols = m.cSize;
var nSum = this.cSize;
var out = new Matrix(nRows, nCols);
var outData = out.data;
var mCol = math._vec(nSum);
var mData = m.data;
for (var col = 0; col < nCols; col++) {
for (var mRow = 0; mRow < nSum; mRow++) {
mCol[mRow] = mData[mRow][col];
}
for (var row = 0; row < nRows; row++) {
var dataRow = this.data[row];
var sum = 0;
for (var i = 0; i < nSum; i++) {
sum += dataRow[i] * mCol[i];
}
outData[row][col] = sum;
}
}
return out;
};
Matrix.prototype.scalarMultiply = function(s) {
var out = new Matrix(this.rSize, this.cSize);
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
out.data[i][j] = this.data[i][j] * s;
}
}
return out;
};
Matrix.prototype.transpose = function() {
var out = new Matrix(this.cSize, this.rSize);
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
out.data[j][i] = this.data[i][j];
}
}
return out;
};
Matrix.prototype.copy = function() {
var out = new Matrix(this.rSize, this.cSize);
for (var i = 0; i < this.rSize; i++) {
for (var j = 0; j < this.cSize; j++) {
out.data[i][j] = this.data[i][j];
}
}
return out;
};
Matrix.prototype.dot = function(v) {
var vData = v.data;
var dot = 0;
for (var i = 0; i < this.rSize; i++) {
dot += this.data[i][0] * vData[i][0];
}
return dot;
};
Matrix.prototype.norm = function(v) {
var sum = 0;
for (var i = 0; i < this.rSize; i++) {
var a = this.data[i][0];
sum += a * a;
}
return Math.sqrt(sum);
};