Merge pull request #1930 from Natan7/power_function

Power in Ruby

Basic/Implement Power Function/SolutionByNatan7.rb

@@ -0,0 +1,27 @@
+def get_power (base = 0, n = 1)  
+  if n == 0
+    return 1
+  elsif ((n%2)==0)
+    return get_power(base*base, n/2)
+  else
+    return base*get_power(base*base, n/2)
+  end
+
+end
+
+# Take a number and the exponent value from the user as input and output the the result of expression (number^n)
+print("Base: ")
+base = gets.chomp.to_i
+print("Power: ")
+power = gets.chomp.to_i
+n = power
+if power<0
+  n = -1*power
+end
+
+result = get_power(base, n)
+
+if power<0
+  result = 1.0/result
+end
+print("The result of " + base.to_s + "^" + power.to_s + " is "+ result.to_s + "\n")