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- EXP(3I) Last changed: 4-13-99
-
-
- NNAAMMEE
- EEXXPP, DDEEXXPP, QQEEXXPP, CCEEXXPP, CCDDEEXXPP, CCQQEEXXPP - Computes exponential function
-
- SSYYNNOOPPSSIISS
- EEXXPP (([XX==]_x))
- DDEEXXPP (([XX==]_x))
- QQEEXXPP (([XX==]_x))
- CCEEXXPP (([XX==]_x))
- CCDDEEXXPP (([XX==]_x))
- CCQQEEXXPP (([XX==]_x))
-
- IIMMPPLLEEMMEENNTTAATTIIOONN
- UNICOS, UNICOS/mk, and IRIX systems
-
- CF90, MIPSpro 7 Fortran 90, MIPSpro Fortran 77
-
- SSTTAANNDDAARRDDSS
- Fortran
-
- Fortran extensions: QQEEXXPP, CCDDEEXXPP, CCQQEEXXPP
-
- DDEESSCCRRIIPPTTIIOONN
- EEXXPP is the generic function name; the others are specifics. These are
- elemental intrinsic functions. They accept the following argument:
-
- _x Must be of type real (for EEXXPP, DDEEXXPP, and QQEEXXPP) or complex
- (for CCEEXXPP, CCDDEEXXPP, and CCQQEEXXPP). The type and kind type of _x
- is identical to the type and kind type of the return value.
- See the RETURN VALUES section for information on input data
- types and return values.
-
- Vector versions of these intrinsics exist on some systems. Vector
- versions of the EEXXPP, DDEEXXPP, CCEEXXPP, CCDDEEXXPP, and CCQQEEXXPP intrinsic functions
- exist on UNICOS and UNICOS/mk systems. On UNICOS/mk systems, the
- vector versions of these intrinsics are used when --OO vveeccttoorr33 or --OO 33
- are specified on the compiler command line. A vector version of the
- single-precision and double-precision EEXXPP intrinsic exists on IRIX
- systems and is used when --OO33 is specified on the compiler command
- line.
- _x
- These functions evaluate _y = _e .
-
- NNOOTTEESS
- The EEXXPP, DDEEXXPP, and CCEEXXPP intrinsic function names can be passed as
- arguments; the others cannot.
-
- On CRAY T90 systems that support IEEE arithmetic, the following return
- values occur:
-
- EEXXPP((_x)) = 0 if _x < -708.4
-
- EEXXPP((_x)) = infinity if _x > 709.78
-
- EEXXPP((NaN)) = NaN
-
- RREETTUURRNN VVAALLUUEESS
- The data type and kind type for single-precision, double-precision,
- and quad-precision values differ depending on your platform. For
- platform-specific information, see the TERMINOLOGY section of the
- IINNTTRROO__IINNTTRRIINN(3I) man page.
- _x
- EEXXPP returns the single-precision real exponential function _e of its
- real argument.
- _x
- DDEEXXPP returns the double-precision real exponential function _e of its
- double-precision real argument.
- _x
- QQEEXXPP returns the quad-precision real exponential function _e of its
- quad-precision real argument.
- _x
- CCEEXXPP returns the single-precision complex exponential function _e of
- its single-precision complex argument.
- _x
- CCDDEEXXPP returns the double-precision complex exponential function _e of
- its double-precision complex argument.
- _x
- CCQQEEXXPP returns the quad-precision complex exponential function _e of
- its quad-precision complex argument.
-
- SSEEEE AALLSSOO
- _I_n_t_r_i_n_s_i_c _P_r_o_c_e_d_u_r_e_s _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l for the printed version of this
- man page.
-