src/main/java/com/flowpowered/math/TrigMath.java
public static float tan(double angle) {
        int idx = GenericMath.floor(angle * SIN_CONVERSION_FACTOR);
        return sinRaw(idx) / cosRaw(idx);
    }
public static float tan(double angle) {
        int idx = GenericMath.floor(angle * SIN_CONVERSION_FACTOR);
        return sinRaw(idx) / cosRaw(idx);
    }
Tangent calculations using a table.<br> <i>sin(angle) / cos(angle)</i><br><br> <p/> <b>No interpolation is performed:</b> Accuracy is up to the 6th decimal place

@param angle in radians
@return the tangent of the angle