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Introduction
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# GNU Multiple Precision

- Introduction
- Installing/Configuring
  - Requirements
  - Installation
  - Runtime Configuration
  - Resource Types
- Predefined Constants
- Examples
- GMP Functions
  - gmp_abs — Absolute value
  - gmp_add — Add numbers
  - gmp_and — Bitwise AND
  - gmp_clrbit — Clear bit
  - gmp_cmp — Compare numbers
  - gmp_com — Calculates one's complement
  - gmp_div_q — Divide numbers
  - gmp_div_qr — Divide numbers and get quotient and remainder
  - gmp_div_r — Remainder of the division of numbers
  - gmp_div — Alias of gmp_div_q
  - gmp_divexact — Exact division of numbers
  - gmp_export — Export to a binary string
  - gmp_fact — Factorial
  - gmp_gcd — Calculate GCD
  - gmp_gcdext — Calculate GCD and multipliers
  - gmp_hamdist — Hamming distance
  - gmp_import — Import from a binary string
  - gmp_init — Create GMP number
  - gmp_intval — Convert GMP number to integer
  - gmp_invert — Inverse by modulo
  - gmp_jacobi — Jacobi symbol
  - gmp_legendre — Legendre symbol
  - gmp_mod — Modulo operation
  - gmp_mul — Multiply numbers
  - gmp_neg — Negate number
  - gmp_nextprime — Find next prime number
  - gmp_or — Bitwise OR
  - gmp_perfect_square — Perfect square check
  - gmp_popcount — Population count
  - gmp_pow — Raise number into power
  - gmp_powm — Raise number into power with modulo
  - gmp_prob_prime — Check if number is "probably prime"
  - gmp_random_bits — Random number
  - gmp_random_range — Random number
  - gmp_random — Random number
  - gmp_root — Take the integer part of nth root
  - gmp_rootrem — Take the integer part and remainder of nth root
  - gmp_scan0 — Scan for 0
  - gmp_scan1 — Scan for 1
  - gmp_setbit — Set bit
  - gmp_sign — Sign of number
  - gmp_sqrt — Calculate square root
  - gmp_sqrtrem — Square root with remainder
  - gmp_strval — Convert GMP number to string
  - gmp_sub — Subtract numbers
  - gmp_testbit — Tests if a bit is set
  - gmp_xor — Bitwise XOR
- GMP — The GMP class

bcsub
Introduction
Mathematical Extensions
PHP Manual