Create signum_function.py

mathgenerator/funcs/signum_function.py

@@ -0,0 +1,19 @@
+from .__init__ import *
+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)