What makes a scientific calculator scientific? Trig functions! Well, they're all here in TouchRPN. To get access to trigonometric functionality, hit and then . You now can see the trig menu:
From here, click any of the function buttons (for sine, cosine, hyperbolic sine, etc) to do that operation on the bottom stack element. The constants (the imaginary number) and push the respective constants on to the stack. Because of the mathematical nature of trig functions, they only do calculations in radians. However, you can use degrees by simply appending the degrees symbol to the number by pressing , and then doing the function. TouchRPN will automatically convert to radians before doing the trig function.
gives all of the inverses for all of the functions available.Back:Documentation Menu