The K Desktop Environment

2.2. Trigonometric Mode

In this mode the left column of buttons is allocated to trigonometric functions:

ButtonsFunction
HypEnter Hyperbolic sub mode. Hyp Sin for example is the hyperbolic sine: sinh(x)
SinCompute the sine
Inv SinCompute the inverse sine
CosCompute the cosine
Inv CosCompute the inverse cosine
TanCompute the tangent
Inv TanCompute the inverse tangent
LogCompute the Log base 10
Inv LogCompute 10 to the power of x
LnCompute the natural logarithm. That is the log to base e
Inv LnCompute e to the power of x