Hi Hutch,

I never need to know more than you already know. The calculators define only pi because they use functions e^x, sqr(x), etc. But a good idea was given by Siekmanski: converter factors.

I would say that you may try to implement a simple function as sqr(x)- i dont know if it is easy to you or easy to implement in your calculator.

My TheCalculator only uses 2 constants: pi and e. But we may get "e" typing "e" or e^1 because it does e^z (z is any complex number a+ib). It doesnt need converter factors because we may use functions sin or sind, cos or cosd, arcsin, arcsind, etc. And if we need we define typing a=180/pi or b=pi/180 and then we may use a or b.

I am answering now because i saw this topic now. I am sorry.

LATER: and

thank you for your kind words