An assortment of 71B questions

[ThomasF]

(04-12-2021 02:14 PM)Dave Britten Wrote:  3. Sharp and Casio computers typically have separate "run" and "program" modes, where run mode can be used as a calculator or for running programs, and entering programs requires switching to program mode. This prevents you from accidentally deleting/modifying a program line if you enter a calculation that somehow gets misinterpreted as a program line (the simple example would be just typing a number and pressing END LINE). Is it possible to make the 71B treat everything as an immediate execution statement to prevent unwanted program line entry? I know there's the CALC mode, but you can't run programs from here.

You can at least define your own functions in Basic and call them from CALC-mode.
The function(s) must be in the current active program ...

Code:

10 DEF FNK(X)=X*X
20 DEF FNI(X)=INTEGRAL(4,5,1E-12,SQR(1 +4*(XA2 + IVARA2))

Enter CALC-mode and use it:

Code:

FNK(5) + --> 25+

I haven't tried FNI() - but I think it should work ...

Cheers,
Thomas