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arm_mat_qr_f32 #126

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yanlong658 opened this issue Nov 6, 2023 · 2 comments
Closed

arm_mat_qr_f32 #126

yanlong658 opened this issue Nov 6, 2023 · 2 comments
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@yanlong658
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Hello,
I have a question about the arm_mat_qr_f32 function regarding the threshold parameter. It appears that the threshold must be specified as a negative value. Is this intentional, or does it differ from the typical practice of using positive values for thresholds in similar functions?

Thanks all.
@christophe0606
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@yanlong658 Hello,

The threshold is positive. For instance, it can be one of the thresholds defined in the header dsp/matrix_functions.h

#define DEFAULT_HOUSEHOLDER_THRESHOLD_F64 (1.0e-16)
#define DEFAULT_HOUSEHOLDER_THRESHOLD_F32 (1.0e-12f)

@christophe0606 christophe0606 added the question Further information is requested label Nov 6, 2023
@yanlong658
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Hello sir,

I have find it.

Thank you

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@yanlong658 @christophe0606