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C

I was hoping to find on-line manuals that I could print and read on the john. So far no luck. But what I really need is how to declare variables in C.

For example, I have a sample code that has the statement:

unsigned char

and

unsigned long

What do these mean and do they limit the declaration to integers. What do i declare if I want a floating point?

Also, someone told me I cant do floating point with a Keil Compiler because of licensing issues (I got my copy from Silicon Labs and have just registered it). I will eventually need to do trig functions. What do i have to get (buy) to complete my project?

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