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9 Arithmetic Functions
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This chapter describes the Calc commands for doing simple calculations
on numbers, such as addition, absolute value, and square roots.  These
commands work by removing the top one or two values from the stack,
performing the desired operation, and pushing the result back onto the
stack.  If the operation cannot be performed, the result pushed is a
formula instead of a number, such as `2/0' (because division by zero is
illegal) or `sqrt(x)' (because the argument `x' is a formula).

   Most of the commands described here can be invoked by a single
keystroke.  Some of the more obscure ones are two-letter sequences
beginning with the `f' ("functions") prefix key.

   Note: Prefix Arguments, for a discussion of the effect of numeric
prefix arguments on commands in this chapter which do not otherwise
interpret a prefix argument.

Basic Arithmetic
Integer Truncation
Complex Number Functions
Conversions
Date Arithmetic
Financial Functions
Binary Functions

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