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// Cosecant
//
// cosecant - csc
//
// f( x ) = csc( x ) = 1 / sin( x )
//
// X_n - 1
// Y_n - 1
// C_n - 0
#include <math.h>
#include "ts.h"
ts_parameter_t const ts_cosecant_p = { .n_inputs = 1, .n_outputs = 1, .n_constants = 0, .params_size = 0 };
uint_t ts_cosecant_offset( ts_constant_t const *c )
{
( void )c;
return ( 0 );
}
int ts_cosecant(
fp_t * const *y, uint_t y_n,
fp_t const * const *x, uint_t x_n,
uint_t n, ts_constant_t const *c
)
{
TS_PROLOGUE( ts_cosecant_p );
(void)c;
for( uint_t i = 0; i < n; ++i )
{
fp_t s = sin( x[0][i] );
y[0][i] = ( fabs( s ) > 1e-15 ) ? _ts_reciprocal( s ) : ( s > 0 ? (fp_t)INFINITY : (fp_t)-INFINITY );
}
return 0;
}
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