Feat(compute): Write powers of fraction

mapytex/calculus/API/__init__.py

@@ -32,6 +32,15 @@ Generate and compute like a student!
 4 / 2 + 3 / 2
 (4 + 3) / 2
 7 / 2
+>>> e = Expression.from_str("(2/3)^4")
+>>> e_simplified = e.simplify()
+>>> print(e_simplified)
+16 / 81
+>>> for s in e_simplified.explain():
+...    print(s)
+(2 / 3)^4
+2^4 / 3^4
+16 / 81
 
 """
 

mapytex/calculus/core/compute/power.py

@@ -80,8 +80,17 @@ def mofraction_monumber(left, right):
     >>> a = MOFraction(3, 2)
     >>> b = MOnumber(2)
     >>> print(power(a, b))
+    /
+     > ^
+     | > 3
+     | > 2
+     > ^
+     | > 2
+     | > 2
     """
-    raise NotImplementedError
+    num = Tree("^", left.numerator, right)
+    denom = Tree("^", left.denominator, right)
+    return Tree("/", num, denom)