26 lines
458 B
C
26 lines
458 B
C
#ifndef __CALC_H__
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#define __CALC_H__
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#define NUM_TYPE float
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#define CALC_POINTS (128)
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/* y = a * x^2 + b * x + c */
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struct quadratic_coefficient_s {
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NUM_TYPE a;
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NUM_TYPE b;
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NUM_TYPE c;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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void calc_quadratic_fit_init(int length);
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void calc_quadratic_fit(NUM_TYPE *buff, struct quadratic_coefficient_s *coeff, int length);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CALC_H__ */
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