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# II. Arbitrary precision mathematics functions

These functions are only available if PHP was configured with `--enable-bcmath`.

Table of Contents
bcadd — Add two arbitrary precision numbers.
bccomp — Compare two arbitrary precision numbers.
bcdiv — Divide two arbitrary precision numbers.
bcmod — Get modulus of an arbitrary precision number.
bcmul — Multiply two arbitrary precision number.
bcpow — Raise an arbitrary precision number to another.
bcscale — Set default scale parameter for all bc math functions.
bcsqrt — Get the square root of an arbitray precision number.
bcsub — Subtract one arbitrary precision number from another.

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