None that are widely used. What you're suggesting has no advantage over the existing approach and would significantly reduce the speed at which practitioners ca

None that are widely used. What you're suggesting has no advantage over the existing approach and would significantly reduce the speed at which practitioners can read and write mathematical expressions. This is somewhat evident in your example of sin() and cos(). Even in situations like the trig functions where concepts aren't represented with special sigils (because there are too many of them and it would be silly), they are abbreviated in standard ways. sine -> sin() cosine -> cos() tangent -> tan() cotangent -> cot() secant -> sec() hyperbolic sine -> sinh() hyperbolic cotangent -> coth() etc.