What's the difference between a Boolean function and a Boolean expression?

A boolean function is a function in any programming language whose return type is boolean means a function that returns true or false. For ex:-

bool func (int a, int b)

{

if (a>b)

return true;

else

return false;

}

An expression is a combination of one or more variables, constants, operators, function and which is computed and produces a value in case of boolean expression the value that is calculated is either true or false.

for ex: - bool result = a>b && a>c;