Question about using lambda

[ichabod801]

Note that in the second case you are not assigning the arguments (12 and 3) to a variable, your are assigning the return value (36) to a variable. In the first case, you don't assign the result (return value) of r(12, 3) to anything, so it just disappears. Functions don't store their return value. When you print r, it just prints the function object, which is just a note that r is a lambda function stored at a particular address.