List of usage examples for java.lang Math hypot
public static double hypot(double x, double y)
From source file:Main.java
public static void main(String[] args) { double x = 123456.7; double y = -123.45; // call hypot and print the result System.out.println("Math.hypot(" + x + "," + y + ")=" + Math.hypot(x, y)); }
From source file:Main.java
public static void main(String[] args) { int a = 10;/* w w w .j a v a 2 s. c o m*/ int b = -50; int c = 3; double x = 25.0; double y = 3.0; double z = 4.0; System.out.println("abs(b) = " + Math.abs(b)); System.out.println("cbrt(x) = " + Math.cbrt(x)); System.out.println("exp(y) = " + Math.exp(z)); System.out.println("hypot(y, z)= " + Math.hypot(y, z)); System.out.println("log(y) = " + Math.log(y)); System.out.println("log10(y) = " + Math.log10(y)); System.out.println("max(a, b) = " + Math.max(a, b)); System.out.println("min(a, b) = " + Math.min(a, b)); System.out.println("pow(a, c) = " + Math.pow(a, c)); System.out.println("random() = " + Math.random()); System.out.println("signum(b) = " + Math.signum(b)); System.out.println("sqrt(x) = " + Math.sqrt(y)); }
From source file:msi.gaml.operators.Maths.java
public static void main(final String[] args) throws ParseException { java.lang.System.out.println("Various format tests"); java.lang.System.out.println("NumberFormat.parse1e1 = " + NumberFormat.getInstance(Locale.US).parse("1e1")); java.lang.System.out.println("Double.parse 1e1 = " + Double.parseDouble("1e1")); java.lang.System.out/* w ww . j a v a 2s . co m*/ .println("NumberFormat.parse 1E1 = " + NumberFormat.getInstance(Locale.US).parse("1E1")); java.lang.System.out.println("Double.parse 1E1 = " + Double.parseDouble("1E1")); java.lang.System.out .println("NumberFormat.parse 1.0e1 = " + NumberFormat.getInstance(Locale.US).parse("1.0e1")); java.lang.System.out.println("Double.parse 1.0e1 = " + Double.parseDouble("1.0e1")); java.lang.System.out.println( "NumberFormat.parse 0.001E+10 = " + NumberFormat.getInstance(Locale.US).parse("0.001E+10")); java.lang.System.out.println("Double.parse 0.001E+10 = " + Double.parseDouble("0.001E+10")); java.lang.System.out.println( "NumberFormat.parse 0.001E-10 = " + NumberFormat.getInstance(Locale.US).parse("0.001E-10")); java.lang.System.out.println("Double.parse 0.001E-10 = " + Double.parseDouble("0.001E-10")); java.lang.System.out .println("NumberFormat.parse 0.001e-10 =" + NumberFormat.getInstance(Locale.US).parse("0.001e-10")); java.lang.System.out.println("Double.parse 0.001e-10 = " + Double.parseDouble("0.001e-10")); java.lang.System.out.println("Various arithmetic tests"); java.lang.System.out.println("cos(PI) = " + Maths.cos_rad(PI)); java.lang.System.out.println("sin_rad(0.0) = " + sin_rad(0.0)); java.lang.System.out.println("tan_rad(0.0) = " + tan_rad(0.0)); java.lang.System.out.println("sin(360) = " + sin(360)); java.lang.System.out.println("sin(-720) = " + sin(-720)); java.lang.System.out.println("sin(360.0) = " + sin(360.0)); java.lang.System.out.println("sin(-720.0) = " + sin(-720.0)); java.lang.System.out.println("sin(90) = " + sin(90)); java.lang.System.out.println("sin(45) = " + sin(45)); java.lang.System.out.println("sin(0) = " + sin(0)); java.lang.System.out.println("sin(135) = " + sin(135)); java.lang.System.out.println("Math.sin(360.0) = " + Math.sin(2 * Math.PI)); // java.lang.System.out.println("3.0 = 3" + (3d == 3)); // java.lang.System.out.println("3.0 != 3" + (3d != 3)); java.lang.System.out.println("floor and ceil 2.7 " + floor(2.7) + " and " + ceil(2.7)); java.lang.System.out.println("floor and ceil -2.7 " + floor(-2.7) + " and " + ceil(-2.7)); java.lang.System.out.println("floor and ceil -2 " + floor(-2) + " and " + ceil(-2)); java.lang.System.out.println("floor and ceil 3 " + floor(3) + " and " + ceil(3)); double atan2diff = 0; double atan2diff2 = 0; Random rand = new Random(); long s1 = 0; long t1 = 0; long t2 = 0; long t3 = 0; // for ( int i = 0; i < 10000000; i++ ) { // double x = rand.nextDouble(); // double y = rand.nextDouble(); // s1 = java.lang.System.currentTimeMillis(); // double a1 = Math.atan2(x, y); // t1 += java.lang.System.currentTimeMillis() - s1; // s1 = java.lang.System.currentTimeMillis(); // double a2 = FastMath.atan2(x, y); // t2 += java.lang.System.currentTimeMillis() - s1; // s1 = java.lang.System.currentTimeMillis(); // double a3 = Maths.atan2Opt2(x, y); // t3 += java.lang.System.currentTimeMillis() - s1; // // atan2diff += Math.abs(a1 - a2); // atan2diff2 += Math.abs(a1 - a3); // } // java.lang.System.out.println("atan2diff : " + atan2diff + " atan2diff2 : " + atan2diff2 + " t1 : " + t1 + // " t2 : " + t2 + " t3 : " + t3); long t4 = 0; long t5 = 0; long t6 = 0; double distDiff1 = 0; double distDiff2 = 0; for (int i = 0; i < 1000000; i++) { double x1 = rand.nextDouble(); double y1 = rand.nextDouble(); double x2 = rand.nextDouble(); double y2 = rand.nextDouble(); Coordinate c1 = new Coordinate(x1, y1); Coordinate c2 = new Coordinate(x2, y2); s1 = java.lang.System.currentTimeMillis(); double a1 = Math.hypot(x2 - x1, y2 - y1); t4 += java.lang.System.currentTimeMillis() - s1; s1 = java.lang.System.currentTimeMillis(); double a2 = FastMath.hypot(x2 - x1, y2 - y1); t5 += java.lang.System.currentTimeMillis() - s1; s1 = java.lang.System.currentTimeMillis(); double a3 = c1.distance(c2); t6 += java.lang.System.currentTimeMillis() - s1; distDiff1 += Math.abs(a1 - a2); distDiff2 += Math.abs(a1 - a3); } java.lang.System.out.println("distDiff1 : " + distDiff1 + " distDiff2 : " + distDiff2 + " t4 : " + t4 + " t5 : " + t5 + " t6 : " + t6); long t7 = 0; long t8 = 0; distDiff1 = 0; for (int i = 0; i < 1000000; i++) { double a1, a2; double x1 = rand.nextDouble(); double x2 = rand.nextDouble(); double y1 = rand.nextDouble(); double y2 = rand.nextDouble(); double z1 = 0.0; double z2 = 0.0; GamaPoint c2 = new GamaPoint(x2, y2, z2); s1 = java.lang.System.currentTimeMillis(); if (z1 == 0d && c2.getZ() == 0d) { a1 = hypot(x1, x2, y1, y2); } else { a1 = hypot(x1, x2, y1, y2, z1, z2); } t7 += java.lang.System.currentTimeMillis() - s1; s1 = java.lang.System.currentTimeMillis(); a2 = hypot(x1, x2, y1, y2, z1, c2.getZ()); t8 += java.lang.System.currentTimeMillis() - s1; distDiff1 += Math.abs(a1 - a2); } java.lang.System.out.println( "with 0.0 check : " + t7 + " with direct 3 parameters call : " + t8 + " distance : " + distDiff1); // java.lang.System.out.println("Infinity to int:" + (int) Double.POSITIVE_INFINITY); // java.lang.System.out.println("NaN to int:" + (int) Double.NaN); // GuiUtils.debug("(int) (1.0/0.0):" + (int) (1.0 / 0.0)); // GuiUtils.debug("(int) (1.0/0):" + (int) (1.0 / 0)); // GuiUtils.debug("(int) (1.0/0d):" + (int) (1 / 0d)); // GuiUtils.debug("(int) (1/0):" + 1 / 0); }
From source file:Main.java
public static float getDistance(float x1, float y1, float x2, float y2) { float dx = Math.abs(x1 - x2); float dy = Math.abs(y1 - y2); return (float) Math.hypot(dx, dy); }
From source file:Main.java
public static void revealColorFromCoordinates(int x, int y, View viewRoot) { float finalRadius = (float) Math.hypot(viewRoot.getWidth(), viewRoot.getHeight()); Animator anim = null;//from w ww. j a v a 2 s . c om if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { anim = ViewAnimationUtils.createCircularReveal(viewRoot, x, y, 0, finalRadius); } //viewRoot.setBackgroundColor(ContextCompat.getColor(viewRoot.getContext(), R.color.colorPrimary)); anim.setDuration(1000); anim.start(); }
From source file:Main.java
public static float[][] compute_amplitude(float[][] real, float[][] imaginary) { float[][] amp = new float[real.length][real.length]; float maxAmp = 0; for (int row = 0; row < amp.length; row++) { for (int col = 0; col < amp.length; col++) { amp[row][col] = (float) Math.hypot(real[row][col], imaginary[row][col]); if (amp[row][col] > maxAmp) { maxAmp = amp[row][col];/*from ww w. j a v a 2 s . c o m*/ } } } maxAPP = maxAmp; return amp; }
From source file:Main.java
@TargetApi(Build.VERSION_CODES.LOLLIPOP) private static Animator createHideAnim(final View viewRoot, int x, int y) { float initialRadius = (float) Math.hypot(viewRoot.getWidth(), viewRoot.getHeight()); Animator anim = ViewAnimationUtils.createCircularReveal(viewRoot, x, y, initialRadius, 0); anim.addListener(new AnimatorListenerAdapter() { @Override// ww w. j a va2 s . c o m public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); viewRoot.setVisibility(View.GONE); } }); anim.start(); return anim; }
From source file:Main.java
public static float maxDistanceToCorner(int x, int y, int left, int top, int right, int bottom) { float maxDistance = 0; maxDistance = Math.max(maxDistance, (float) Math.hypot(x - left, y - top)); maxDistance = Math.max(maxDistance, (float) Math.hypot(x - right, y - top)); maxDistance = Math.max(maxDistance, (float) Math.hypot(x - left, y - bottom)); maxDistance = Math.max(maxDistance, (float) Math.hypot(x - right, y - bottom)); return maxDistance; }
From source file:Main.java
public static void circleReveal(final View targetView, int centerX, int centerY, boolean isReverse) { if (targetView == null || !targetView.isAttachedToWindow()) return;//from w ww. jav a 2s . c o m int radius = (int) Math.hypot(targetView.getHeight(), targetView.getWidth()); Animator animator; if (isReverse) { animator = isCircleRevealSupported() ? ViewAnimationUtils.createCircularReveal(targetView, centerX, centerY, radius, 0) : createFade(targetView, 1, 0); animator.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { targetView.setVisibility(View.GONE); } }); } else { animator = isCircleRevealSupported() ? ViewAnimationUtils.createCircularReveal(targetView, centerX, centerY, 0, radius) : createFade(targetView, 0, 1); animator.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationStart(Animator animation) { targetView.setVisibility(View.VISIBLE); } }); } animator.setDuration(DURATION); animator.start(); }
From source file:Main.java
/** * Gets straighten matrix for the given bounds and degrees. *//*from w w w.j a v a 2 s. c o m*/ public static void getStraightenMatrix(RectF bounds, float degrees, Matrix matrix) { matrix.reset(); if ((degrees != 0) && !bounds.isEmpty()) { float w = bounds.width() / 2; float h = bounds.height() / 2; float adjustAngle; if ((degrees < 0 && w > h) || (degrees > 0 && w <= h)) { // The top left point is the boundary. adjustAngle = (float) Math.atan(h / -w) + MATH_PI + degrees * DEGREES_TO_RADIAN; } else { // The top right point is the boundary. adjustAngle = (float) Math.atan(h / w) - MATH_PI + degrees * DEGREES_TO_RADIAN; } float radius = (float) Math.hypot(w, h); float scaleX = (float) Math.abs(radius * Math.cos(adjustAngle)) / w; float scaleY = (float) Math.abs(radius * Math.sin(adjustAngle)) / h; float scale = Math.max(scaleX, scaleY); postRotateMatrix(degrees, new RectF(bounds), matrix); matrix.postScale(scale, scale); } }