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### 9.62 `CMPLX`

— Complex conversion function

*Description*:`CMPLX(X [, Y [, KIND]])`

returns a complex number where`X`is converted to the real component. If`Y`is present it is converted to the imaginary component. If`Y`is not present then the imaginary component is set to 0.0. If`X`is complex then`Y`must not be present.*Standard*:Fortran 77 and later

*Class*:Elemental function

*Syntax*:`RESULT = CMPLX(X [, Y [, KIND]])`

*Arguments*:`X`The type may be `INTEGER`

,`REAL`

, or`COMPLEX`

.`Y`(Optional; only allowed if `X`is not`COMPLEX`

.) May be`INTEGER`

or`REAL`

.`KIND`(Optional) An `INTEGER`

initialization expression indicating the kind parameter of the result.*Return value*:The return value is of

`COMPLEX`

type, with a kind equal to`KIND`if it is specified. If`KIND`is not specified, the result is of the default`COMPLEX`

kind, regardless of the kinds of`X`and`Y`.*Example*:program test_cmplx integer :: i = 42 real :: x = 3.14 complex :: z z = cmplx(i, x) print *, z, cmplx(x) end program test_cmplx

*See also*: