Are there references or theoretical methods for to_sos functions in iir_design files

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Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON)

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Closed Panhaolin2001 closed 2 years ago

Panhaolin2001 commented 2 years ago

Are there references or theoretical methods for to_sos functions in iir_design files？thx...