Units

Unit of angle: As with a handheld calculator, in CalcMe, you can work with angles in one of two modes:

Whether CalcMe will use radians or degrees to evaluate trigonometric expressions when the unit is not specified (therefore, sin(90°) and sin(π2 rad) will be the same regardless of this option, but the result of sin(90) will depend on which option has been selected here). The result of inverse trigonometric functions will also have this unit. Notice that this change also affects plots, integrals, and derivatives of trigonometric functions.

Unit of angle
Unit of angle: radians	Unit of angle: degrees

When you use a direct trigonometric function (e.g., sin(2)), the input angle is assumed to be in radians or degrees, according to the mode. When using an inverse trigonometric function (e.g., arcsin(0.5)) the result angle should also be interpreted according to the mode. See the trigonometric functions section. Commands argument() and polar() for complex numbers are like arctan(), and their results are also according to the mode.