Java Utililty Methods Square Calculate

List of utility methods to do Square Calculate

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Description

The list of methods to do Square Calculate are organized into topic(s).

Method

byte[]square2array(byte[][] square)
squarearray 
int height = square.length;
int width = square[0].length;
byte[] ar = new byte[height * width];
int i = 0;
for (int r = 0; r < height; r++) {
    for (int c = 0; c < width; c++) {
        ar[i] = square[r][c];
        i++;
...
bytesquare2Index(long square)
square Index 
long b = square ^ (square - 1);
int fold = (int) (b ^ (b >>> 32));
return bitTable[(fold * 0x783a9b23) >>> 26];
doublesquareArea(final double side)
Calculates the area of a square. 
return rectangleArea(side, side);
intsquared(int x)
squared 
return (int) Math.round(Math.pow(x, x));
doublesquaredError(double[] vector1, double[] vector2)
squared Error 
double squaredError = 0;
for (int i = 0; i < vector1.length; i++) {
    squaredError += (vector1[i] - vector2[i]) * (vector1[i] - vector2[i]);
return squaredError;
doublesquaredLoss(double[] x, double[] y, double w_0, double w_1)
This will return the squared loss of the given points 
double sum = 0;
for (int j = 0; j < x.length; j++) {
    sum += Math.pow((y[j] - (w_1 * x[j] + w_0)), 2);
return sum;
doublesquaredNorm(final double[] vec)
Returns the square of the euclidean norm of a vector. 
assert vec != null;
double s = 0;
for (double i : vec) {
    s += Math.pow(i, 2);
return s;
voidsquareEntries(double[][] m)
square Entries 
for (int i = 0; i < m.length; i++)
    for (int j = 0; j < m[i].length; j++)
        m[i][j] *= m[i][j];
doublesquarenessRatio(final double w, final double h)
squareness Ratio 
return Math.abs(1.0 - (w > h ? w / h : h / w));
longsquareOfSumFirstN(long n)
square Of Sum First N 
long sumN = sumFirstN(n);
return sumN * sumN;