Add prime number generator and trig functions

src/net/apocalypselabs/symat/Functions.java

@@ -54,12 +54,14 @@ import java.lang.reflect.Array;
 import java.math.BigInteger;
 import java.net.URL;
 import java.security.SecureRandom;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.List;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Set;
@@ -409,6 +411,81 @@ public class Functions {
         return ans.toString();
     }
 
+    public int[] primes(int in) {
+        boolean[] prime = new boolean[in];
+        for (int i = 0; i < prime.length; i++) {
+            prime[i] = true;
+        }
+        for (int i = 2; i < sqrt(in); i++) {
+            if (prime[i]) {
+                int x = 0;
+                for (int j = i * i; j < in; j = i * i + x * i) {
+                    prime[j] = false;
+                    x++;
+                }
+            }
+        }
+        List<Integer> arr = new ArrayList<>();
+        for (int i = 2; i < prime.length; i++) {
+            if (prime[i]) {
+                arr.add(i);
+            }
+        }
+        int[] out = new int[arr.size()];
+        for (int i = 0; i < arr.size(); i++) {
+            out[i] = arr.get(i);
+        }
+        return out;
+    }
+
+    public double sec(double d) {
+        return 1.0 / Math.cos(d);
+    }
+
+    public double csc(double d) {
+        return 1.0 / Math.sin(d);
+    }
+
+    public double cot(double d) {
+        return 1.0 / Math.tan(d);
+    }
+
+    public double asec(double d) {
+        return Math.acos(1.0 / d);
+    }
+
+    public double acsc(double d) {
+        return Math.asin(1.0 / d);
+    }
+
+    public double acot(double d) {
+        return Math.atan(1.0 / d);
+    }
+
+    public double sinh(double d) {
+        return Math.sinh(d);
+    }
+
+    public double cosh(double d) {
+        return Math.cosh(d);
+    }
+
+    public double tanh(double d) {
+        return Math.tanh(d);
+    }
+
+    public double sech(double d) {
+        return pow(Math.cosh(d), -1);
+    }
+
+    public double csch(double d) {
+        return pow(Math.sinh(d), -1);
+    }
+
+    public double coth(double d) {
+        return Math.cosh(d) / Math.sinh(d);
+    }
+
     /**
      * Multiplies the given numbers together.
      *

src/net/apocalypselabs/symat/functions.py

@@ -75,4 +75,16 @@ def gcd(a,b):
 def solve(a,b='x',c=0):
     return _.solve(a,b,c)
 def printa(a):
-    return _.printa(a)
+    return _.printa(a)
+def sec(a):
+    return _.sec(a)
+def csc(a):
+    return _.csc(a)
+def cot(a):
+    return _.cot(a)
+def asec(a):
+    return _.asec(a)
+def acsc(a):
+    return _.acsc(a)
+def acot(a):
+    return _.acot(a)