6 ways to express a simple function:
function f(sys v,w) as sys = v*w
function f(sys v,w) as sys {return v*w}
sys f(sys v,w)
{
return v*w
}
function f(sys v,w) as sys
return v*w
end function
function f(sys v,sys w) as sys
return v*w
end function
function f(byval v as sys, byval w as sys) as sys
function=v*w
end function
print f(2,3)