MOD — Remainder function#

MOD(A, P)#

MOD(A,P) computes the remainder of the division of A by P.

Parameters

A – Shall be a scalar of type INTEGER or REAL.
P – Shall be a scalar of the same type and kind as A and not equal to zero. (As a GNU extension, arguments of different kinds are permitted.)

Returns

The return value is the result of A - (INT(A/P) * P). The type and kind of the return value is the same as that of the arguments. The returned value has the same sign as A and a magnitude less than the magnitude of P. (As a GNU extension, kind is the largest kind of the actual arguments.)

Standard:

Fortran 77 and later, has overloads that are GNU extensions

Class:

Elemental function

Syntax:

RESULT = MOD(A, P)

Example:

program test_mod
  print *, mod(17,3)
  print *, mod(17.5,5.5)
  print *, mod(17.5d0,5.5)
  print *, mod(17.5,5.5d0)

  print *, mod(-17,3)
  print *, mod(-17.5,5.5)
  print *, mod(-17.5d0,5.5)
  print *, mod(-17.5,5.5d0)

  print *, mod(17,-3)
  print *, mod(17.5,-5.5)
  print *, mod(17.5d0,-5.5)
  print *, mod(17.5,-5.5d0)
end program test_mod

Specific names:

Name	Arguments	Return type	Standard
`MOD(A,P)`	`INTEGER A,P`	`INTEGER`	Fortran 77 and later
`AMOD(A,P)`	`REAL(4) A,P`	`REAL(4)`	Fortran 77 and later
`DMOD(A,P)`	`REAL(8) A,P`	`REAL(8)`	Fortran 77 and later
`BMOD(A,P)`	`INTEGER(1) A,P`	`INTEGER(1)`	GNU extension
`IMOD(A,P)`	`INTEGER(2) A,P`	`INTEGER(2)`	GNU extension
`JMOD(A,P)`	`INTEGER(4) A,P`	`INTEGER(4)`	GNU extension
`KMOD(A,P)`	`INTEGER(8) A,P`	`INTEGER(8)`	GNU extension

See also:

MODULO — Modulo function