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Acos(x)

Returns arccosine (arcus cosinus) of x, e.g., Acos(-1)=3.14159

Asin(x)

Returns arcsine (arcus sinus) of x, e.g., Asin(1)=1.5708

Atan(x)

Returns arctangent (arcus tangens) of x, e.g., Atan(1)=0.785398

Atan2(y,x)

Returns arctangent (arcus tangens) from x and y coordinates, e.g., Atan2(1,1)=0.785398

Cos(x)

Returns cosine (cosinus) of x, e.g., Cos(1)=0.540302

Pi()

Returns constant π, e.g., Pi()=3.14159

Sin(x)

Returns sine (sinus) of x, e.g., Sin(1)=0.841471

Tan(x)

Returns tangent (tangens) of x, e.g., Tan(1)=1.55741