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### 9.202 `MODULO`

— Modulo function

*Description*:`MODULO(A,P)`

computes the`A`modulo`P`.*Standard*:Fortran 95 and later

*Class*:Elemental function

*Syntax*:`RESULT = MODULO(A, P)`

*Arguments*:`A`Shall be a scalar of type `INTEGER`

or`REAL`

.`P`Shall be a scalar of the same type and kind as `A`. It shall not be zero. (As a GNU extension, arguments of different kinds are permitted.)*Return value*:The type and kind of the result are those of the arguments. (As a GNU extension, kind is the largest kind of the actual arguments.)

- If
`A`and`P`are of type`INTEGER`

: `MODULO(A,P)`

has the value`R`such that`A=Q*P+R`

, where`Q`is an integer and`R`is between 0 (inclusive) and`P`(exclusive).- If
`A`and`P`are of type`REAL`

: `MODULO(A,P)`

has the value of`A - FLOOR (A / P) * P`

.

The returned value has the same sign as P and a magnitude less than the magnitude of P.

- If
*Example*:program test_modulo print *, modulo(17,3) print *, modulo(17.5,5.5) print *, modulo(-17,3) print *, modulo(-17.5,5.5) print *, modulo(17,-3) print *, modulo(17.5,-5.5) end program

*See also*: