# [✓] Define a complicated function?

GROUPS:
 Dear Community,I have a fairly complicated function with several input variables. I can not define the function in one single line, because it does a lot of things finaly resulting in one single number. How can I enter it into Mathematica? I find only simple, 1 line functions in books, and in the documentation center. I mean something like this e.g.: longfun[ a_ , b_ , c_ , d_ , e_ ] := fac1 = 2*a + 3*b fac2 = 4*d + 5*e - 2*a + 3*c fac3 = Sqrt[fac1] + 3.487*fac2 + 2.2*e ; and longfun should be finally equal to fac1 + fac2 - 4.5*fac3.tx in advance, best regards Andras