refactoring: used a comment to explain the shifting of the curve as I see no way to make that clear with variable names. Furthermore, used the already implemented basic calculating operations to reduce duplication of code

src/main/py/trigonometry.py

@@ -16,9 +16,9 @@ def rad2deg(radNumber):
 
 def sin_approx_bhaskara(radNumber):
 
-    shallFlipTheResult = 0
+    shallFlipTheResult = 0  #the bhaskara function can only be used between zero and pi. For the rest of the sin period I simply mirrored the first arch of the curve to match the actual sine wave
     if math.pi < radNumber < 2 * math.pi:
-        radNumber -= math.pi
+        radNumber = subract(math.pi, radNumber)
         shallFlipTheResult = 1
 
 
@@ -33,5 +33,5 @@ def sin_approx_bhaskara(radNumber):
     sinResult = divide(num, subract(denomFrag2, denomFrag1))
 
     if(shallFlipTheResult == 1):
-        return sinResult * -1
+        return multiply(sinResult, -1)
     return sinResult