Replacement for undocumented function feature('setround')

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Myron
Myron 2025-2-7
评论： Myron 2025-2-7
Is there a documented MATLAB replacement for the undocumented function feature(‘setround’)? It is fine if the answer is no. I'm just trying to confirm that is the case.
I have been using that function successfully to control how single handles tie-breakers when converting a value to single-precision. Using the C function fesetround is not an option I can use. At first glance using round(___,TieBreaker=”tozero”) seemed promising. However, that rounds before passing a value to single rather than controlling the behavior of the rounding decision within single itself.
Ex.
feature('setround', 0); %configure single to round tie-breakers towards 0
a_single = single(a);
feature('setround', 0.5); %return to default rounding configuration

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Adam Danz
Adam Danz 2025-2-7
移动：Adam Danz 2025-2-7
> Is there a documented MATLAB replacement for the undocumented function feature(‘setround’)?
There currently is not a documented means of controlling the rounding method for single data type value. However, Fixed-Point Designer has a quantizer object that lets you specify the rounding mode. See RoundingModes page for more info

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