Added a generator signum function..

mathgenerator/funcs/signumFunc.py

@@ -0,0 +1,25 @@
+import random
+
+
+def signumFunc(min=-999,max=999):
+    
+    a = random.randint(min,max)
+    b = 0
+    if (a>0):
+        b = 1 
+    if (a<0):
+        b =  -1
+    problem = "signum of " + str(a) + " is " + "="
+    solution = str(b)
+    return problem, solution
+    
+signum_function = Generator("signum function", 106,
+                            "signum function of a is ", "b" ,
+                            signumFunc)    
+
+
+
+
+
+
+