In this mode the left column of buttons is allocated to trigonometric functions:
| Buttons | Function |
|---|---|
| Hyp | Enter Hyperbolic sub mode. Hyp Sin for example is the hyperbolic sine: sinh(x) |
| Sin | Compute the sine |
| Inv Sin | Compute the inverse sine |
| Cos | Compute the cosine |
| Inv Cos | Compute the inverse cosine |
| Tan | Compute the tangent |
| Inv Tan | Compute the inverse tangent |
| Log | Compute the Log base 10 |
| Inv Log | Compute 10 to the power of x |
| Ln | Compute the natural logarithm. That is the log to base e |
| Inv Ln | Compute e to the power of x |