Is it possible to set SINGLE PRECISION as default for a hole program?

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Andrea Zanichelli 2017-1-15

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https://ww2.mathworks.cn/matlabcentral/answers/320472-is-it-possible-to-set-single-precision-as-default-for-a-hole-program

评论： Stavros Skouras 2017-4-20

I need to have all the variables in my program with a single precision. How can I set it as default, for avoiding to use the command 'single' for each of my variables?

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Answer 1

Jyotish Robin 2017-1-18

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https://ww2.mathworks.cn/matlabcentral/answers/320472-is-it-possible-to-set-single-precision-as-default-for-a-hole-program#answer_250999

By default, MATLAB stores all numeric values as double-precision floating point. You cannot change the default type and precision.

But still you may be able to generate single-precision MATLAB code from double-precision MATLAB code. This may require MATLAB Coder and Fixed-Point Designer along with MATLAB.

You can take a look at the following link fore more info:

https://www.mathworks.com/help/coder/ug/generate-single-precision-matlab-code-and-optionally-generate-single-precision-c-code.html

Hope this helps !

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Stavros Skouras 2017-4-20

Hi Robin,

Can one follow the process suggested in your link even when if the program depends on extensive (third-party) Matlab toolboxes (SPM in this case: http://www.fil.ion.ucl.ac.uk/spm/ )

I am looking for a way to speed things up, in case you have some other suggestions.

Many thanks and best wishes, Stavros

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