Example usage for java.lang Math sqrt

Introduction

In this page you can find the example usage for java.lang Math sqrt.

Prototype

@HotSpotIntrinsicCandidate
public static double sqrt(double a)

Source Link

Document

Returns the correctly rounded positive square root of a double value.

Usage

From source file:Main.java

public static double distanceBetweenPoints(double x1, double y1, double x2, double y2) {
    return Math.sqrt(Math.pow((x1 - x2), 2) + Math.pow((y1 - y2), 2));
}

From source file:Main.java

public static float distance(float x1, float y1, float x2, float y2) {

    return (float) Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
}

From source file:Main.java

public static float distance(float x1, float y1, float x2, float y2) {
    float x = x2 - x1;
    float y = y2 - y1;
    return (float) Math.sqrt(x * x + y * y);
}

From source file:Main.java

public static float distance(float x1, float y1, float x2, float y2) {
    float dx = x1 - x2;
    float dy = y1 - y2;
    return (float) Math.sqrt(dx * dx + dy * dy);
}

From source file:Main.java

public static double distance(double currentLatitude, double currentLongitude, double compareLatitude,
        double compareLongitude) {
    return Math.sqrt(
            Math.pow(currentLatitude - compareLatitude, 2) + Math.pow(currentLongitude - compareLongitude, 2));
}

From source file:Main.java

public static double GY(int x, int y, Bitmap bitmap) {
    double res = 1 * getPixel(x - 1, y - 1, bitmap) + Math.sqrt(2) * getPixel(x, y - 1, bitmap)
            + 1 * getPixel(x + 1, y - 1, bitmap) + (-1) * getPixel(x - 1, y + 1, bitmap)
            + (-Math.sqrt(2)) * getPixel(x, y + 1, bitmap) + (-1) * getPixel(x + 1, y + 1, bitmap);
    return res;/*from w ww  . ja  v  a  2s.c om*/
}

From source file:Main.java

public static float length(float[] values) {
    return (float) Math.sqrt(dot(values, values));
}

From source file:Main.java

public static double[] Rec2Sph(double x, double y, double z) {
    double[] sph = new double[3];
    sph[0] = Math.sqrt(x * x + y * y + z * z);
    sph[1] = x == 0 ? 0 : Math.atan(Math.abs(y / x));
    if (x < 0)
        sph[1] = Math.PI - sph[1];
    if (y < 0)
        sph[1] *= -1;// w  w  w .j a v  a  2 s .c  om
    sph[2] = Math.asin(z / sph[0]);
    return sph;
}

From source file:Main.java

public static double calculateVectorMod(float value[]) {
    double r = 0;
    for (int i = 0; i < value.length; i++)
        r += value[i] * value[i];//from  ww w .  j  a va 2  s  .co m
    return Math.sqrt(r);
}

From source file:Main.java

public static double[] getAbs(double[] result) {
    double[] abs = new double[result.length / 2];
    for (int i = 0; i < result.length / 2; i++) {
        abs[i] = Math.sqrt(result[2 * i] * result[2 * i] + result[2 * i + 1] * result[2 * i + 1]);
    }/*from www.  j a va2s  .  com*/
    return abs;
}