Fast Multiply Const: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
Multiplies the input by a constant. output = input * constant.  The "fast" refers to the performance of the block.
Multiplies the input by a '''scalar''' constant. The "Fast" refers to the performance of the block.
 
output = input * scalar constant
 
See [[Multiply_Const]] for a vector multiply block.
 
Note: This block uses VOLK (Vector-Optimized Library of Kernels) to improve execution speed.


== Parameters ==
== Parameters ==
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; Constant (''R'')
; Constant (''R'')
: Constant to multiply the input stream by
: Scalar constant


== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
[[File:Fast_Multiply_Const.png]]
<p>This flowgraph can be downloaded from [[Media:Fast_multiply_const.grc]].</p>


== Source Files ==
== Source Files ==


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/multiply_const_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/multiply_const_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/include/gnuradio/blocks/multiply_const.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/grc/blocks_multiply_const_xx.block.yml]

Latest revision as of 10:07, 18 April 2025

Multiplies the input by a scalar constant. The "Fast" refers to the performance of the block.

output = input * scalar constant

See Multiply_Const for a vector multiply block.

Note: This block uses VOLK (Vector-Optimized Library of Kernels) to improve execution speed.

Parameters

(R): Run-time adjustable

Constant (R)
Scalar constant

Example Flowgraph

Fast Multiply Const.png

This flowgraph can be downloaded from Media:Fast_multiply_const.grc.

Source Files

C++ files
[1]
Header files
[2]
Public header files
[3]
Block definition
[4]
Retrieved from "https://wiki.gnuradio.org/index.php?title=Fast_Multiply_Const&oldid=14955"