Simple calculator X97965
Write a function calculator(a, b, operator) to compute simple arithmetic expressions. The function receives as arguments two numbers a and b and a character operator that is always either ’+’, ’-’ or ’*’. The function has to return either the addition a + b, substraction a − b or the multiplication a*b depending on the actual value of operator.
Sample session
>>> calculator(3.2, 5, '+') 8.2 >>> calculator(2, 3 + 1/2, '-') -1.5 >>> calculator(1/2, 4, '*') - calculator(1, 1, '+') 0.0
Information
- Author
- ProAl
- Language
- English
- Official solutions
- Python
- User solutions
- Python