| mode | switch from radians to degrees and back when using circular trigonometric functions |
| sin | replace x by sin(x) |
| asin | replace x by inverse sine function asin(x) |
| cos | replace x by cos(x) |
| acos | replace x by inverse cosine function acos(x) |
| tan | replace x by tan(x) |
| atan | replace x by inverse tangent function atan(x) |
| sh | replace x by the hyperbolic sine sh(x) |
| ash | replace x by the inverse hyperbolic sine function ash(x) |
| ch | replace x by the hyperbolic cosine ch(x) |
| ach | replace x by the inverse hyperbolic cosine function ach(x) |
| th | replace x by the hyperbolic tangent th(x) |
| ath | replace x by the inverse hyperbolic tangent function ath(x) |