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HP Fortran Programmer's Reference

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Result type/<br />

type parameters<br />

Double precision real.<br />

Result value<br />

Case 1 If A is of type double precision real, DBLE(A) = A.<br />

Intrinsic procedures<br />

Intrinsic procedure specifications<br />

Case 2 If A is of type integer or real, the result is as much precision of the<br />

significant part of A as a double precision real datum can contain.<br />

Case 3 If A is of type complex, the result is as much precision of the significant part<br />

of the real part of A as a double precision real datum can contain.<br />

Specific forms<br />

DBLEQ.<br />

DCMPLX(X,Y)<br />

Optional argument<br />

Y<br />

Description<br />

Convert to double precision complex type.<br />

Class<br />

Elemental nonstandard function.<br />

Arguments<br />

X must be of type integer, real, or complex.<br />

Y must not be supplied if X is of type complex; otherwise is optional and must<br />

be of the same type and kind type parameter as X.<br />

Result type/<br />

type parameters<br />

Double precision complex.<br />

Chapter 11 507

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