Module simd_ops_polynomial 

Fast polynomial approximations for transcendental functions

This module provides SIMD-accelerated polynomial approximations for various transcendental functions (tanh, sinh, cosh, sin, cos, tan). These are used as fallbacks when SLEEF is not available.

Accuracy targets:

• tanh, sinh, cosh: ~1e-6 relative error
• sin, cos, tan: ~1e-6 relative error

Performance targets:

• 3-5x faster than scalar auto-vectorization
• 60-80% of SLEEF performance

Functions

simd_cos_f64_poly

Fast cos approximation using Taylor series

simd_cosh_f64_poly

Fast cosh approximation using Taylor series

simd_sin_f64_poly

Fast sin approximation using Taylor series

simd_sinh_f64_poly

Fast sinh approximation using Taylor series

simd_tan_f64_poly

Fast tan approximation using sin/cos ratio

simd_tanh_f32_poly

Fast tanh approximation for f32

simd_tanh_f64_poly

Fast tanh approximation using Padé approximant