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2016 Update

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This commit is contained in:
Tina Müller 2016-12-05 22:15:40 +01:00
parent 948b86eafa
commit dcf5d15da3
7965 changed files with 139854 additions and 31002 deletions
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37
Task/Roots-of-unity/Java/roots-of-unity.java
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@ -1,10 +1,29 @@
public static void unity(int n){
//all the way around the circle at even intervals
for(double angle = 0;angle < 2 * Math.PI;angle += (2 * Math.PI) / n){
double real = Math.cos(angle); //real axis is the x axis
if(Math.abs(real) < 1.0E-3) real = 0.0; //get rid of annoying sci notation
double imag = Math.sin(angle); //imaginary axis is the y axis
if(Math.abs(imag) < 1.0E-3) imag = 0.0; //get rid of annoying sci notation
System.out.print(real + " + " + imag + "i\t"); //tab-separated answers
}
import java.util.Locale;
public class Test {
public static void main(String[] a) {
for (int n = 2; n < 6; n++)
unity(n);
}
public static void unity(int n) {
System.out.printf("%n%d: ", n);
//all the way around the circle at even intervals
for (double angle = 0; angle < 2 * Math.PI; angle += (2 * Math.PI) / n) {
double real = Math.cos(angle); //real axis is the x axis
if (Math.abs(real) < 1.0E-3)
real = 0.0; //get rid of annoying sci notation
double imag = Math.sin(angle); //imaginary axis is the y axis
if (Math.abs(imag) < 1.0E-3)
imag = 0.0;
System.out.printf(Locale.US, "(%9f,%9f) ", real, imag);
}
}
}