Pythagorean Theorem Calculation Program

This calculation program will work to find length of side by Pythagorean Theorem.
Please input the length of the two sides. Program will find the length of another side.
About Pythagorean Theorem

Pythagorean Theorem

When the lengths of the three sides of a right triangle are a, b, and c, and the hypotenuse is c,
a² + b² = c²
is established.

Avilable fraction and radical value. Program solve answer with them.

Input rule about fraction and radical value

• Fraction : please input in the order of numelator, srash, denominator, like "2/3".
• Radical value : please input in the order of "outside", "r", "inside of radical".
  For example, if you'd like to input 3√5 , please input like "3r5".
  
• If you'd like to input 3√2/5 , please input like as "3r2/5".

You input two sides, however, be sure to set c to the hypotenuse, and leave the side you want to find blank.

Value as Sum / difference / mixed fractions / decimal numbers are not available.
Number of characters that can be input, is 7. It include "/" and "r".
If it is determined that the load is heavy, the process will stop.