exec/eval difference

Question

whats the difference between exec an eval in Python

Answer 1

The eval function evaluates a Python expression, which yields a value, which is then returned by the function.
The exec function takes any Python code and executes it. It doesn't return a value.

Answer 2

correct me if i am wrong
eval function takes a string as parameter which contains mathematical operations.
example -
mathEq = " 5+6*3+8/2"
print (eval(mathEq))

and on other side exec function can have python keywords in its parameter string