Trigonometric Transform Interface Description
All types in this documentation are either standard C types
directory.
float
and
double
or
MKL_INT
integer type. For more information on the C types, refer to
C Datatypes Specific to
Developer Guide.
To better understand usage of the types, see examples in the
oneMKL
and the
Intel® oneAPI Math Kernel Library
examples\pdettc\source
folderin your
Intel® oneAPI Math Kernel Library
Routine Options
All TT routines use parameters to pass various options to one another. These parameters are arrays
ipar
,
dpar
and
spar
. Values for these parameters should be specified very carefully (see
Common Parameters). You can change these values during computations to meet your needs.
To avoid failure or incorrect results, you must provide correct and consistent parameters to the routines.
User Data Arrays
TT routines take arrays of user data as input. For example, user arrays are passed to the routine
TT routines do not make copies of user input arrays.
d_forward_trig_transform
to compute a forward Trigonometric Transform. To minimize storage requirements and improve the overall run-time efficiency,
Intel® oneAPI Math Kernel Library
If you need a copy of your input data arrays, you must save them yourself.
For better performance, align your data arrays as recommended in the
Developer Guide (search the document for coding techniques to improve performance).
Intel® oneAPI Math Kernel Library