Method cos

src/main/java/net/minecraft/util/MathHelper.java:50–53

cos looked up in the sin table with the appropriate offset

(float value)

     * cos looked up in the sin table with the appropriate offset
     */
    public static float cos(float value)
    {
        return fastMath ? SIN_TABLE_FAST[(int)(value * radToIndex + 1024.0F) & 4095] : SIN_TABLE[(int)(value * 10430.378F + 16384.0F) & 65535];
    }

    public static float sqrt_float(float value)
    {