Edit:
Could you possibly illustrate how to get a float into an integer that can be used in the expression?

I am retrieving
Event OnSleepStart(float afSleepStartTime, float afDesiredSleepEndTime)

i want to get those two float values, make them integers and then use them in the expression

original:
i discovered that you cannot place a cast variable inside a double parenthetical expression.
Or is there a way?

compiler chokes on this:

float X = 10
int Y = X as int
int Z = 5
A = ((X - Y) - (X * 5)) - 1

In your first expression, you're not casting X to an Int...X is sitll a float when the expression comes along. it has nothing to do with the parentheses...there is no auto-castiing in Papyrus.

Could you possibly illustrate how to get a float into an integer that can be used in the expression?

I am retrieving
Event OnSleepStart(float afSleepStartTime, float afDesiredSleepEndTime)

i want to get those two float values, make them integers and then use them in the expression

This is passes the compiler, is this the correct way?

Event OnSleepStart(float afSleepStartTime, float afDesiredSleepEndTime)  sBegin = afSleepStartTime as int  sEnd = afDesiredSleepEndTime as int  duration = (sEnd - sBegin)endEvent

You'd do it like this (W,X,Y, and Z are Float Type)

int NewW = (W as int)Int NewX = (X as int)int NewY = (Y as int)int NewZ = (Z as int)int Result = ((W*X) + (Y*Z))

That's the idea...cast all variables as the same type before doing any computations.

No reason you couldn't do the computation as float and then convert like so:

duration = (AFDesiredSleepEndTime - afSleepStartTime) as int

The computation would be more accurate, since it won't round it off until it's done.

thanks for the clarifications, much appreciated!