Mathematical Extensions
Введение
Mathematical Extensions
PHP Manual

# BCMath Arbitrary Precision Mathematics

- Введение
- Установка и настройка
  - Требования
  - Установка
  - Настройка во время выполнения
  - Типы ресурсов
- Предопределенные константы
- BC Math Функции
  - 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
  - bcpowmod — Raise an arbitrary precision number to another, reduced by a specified modulus
  - bcscale — Set default scale parameter for all bc math functions
  - bcsqrt — Get the square root of an arbitrary precision number
  - bcsub — Subtract one arbitrary precision number from another

Mathematical Extensions
Введение
Mathematical Extensions
PHP Manual