Function gen_cosine_4

include/LabSound/core/WindowFunctions.h:83–86

    }

    inline float gen_cosine_4(const float max_index, const uint32_t idx, const float alpha, const float beta, const float gamma, const float delta, const float epsilon)
    {
        return gen_cosine_3(max_index, idx, alpha, beta, gamma, delta) + epsilon * std::cos((4 * static_cast<float>(LAB_TAU) * idx) / max_index);
    }

    inline float gaussian(const float max_index, const uint32_t idx, const float sigma)
    {