Re: 33s solver with programs Message #2 Posted by Karl Schneider on 8 Apr 2006, 3:37 a.m., in response to message #1 by Hal
Hal --
Why yes, I am reading this...
"SELECT FN" is prompting the user to select the single-letter LBL identifier (A..Z) of the program that calculates the user's function to be integrated or solved. The selection is made with the "FN=" command.
Note: If an equation is displayed (in EQN mode) when SOLVE or INTEG is invoked, then that equation will be used. Otherwise, whatever program is currently specified by "FN=" will be used. It's good practice to use "FN=" if you're not absolutely sure what program is presently specified, else you'll run the risk of solving or integrating the wrong function and not even know it. (An invisible input to a built-in function was not the best of ideas...)
General background about SOLVE and INTEG on RPN-based calc's is found in my MoHPC article, which I referenced. I left the specific procedures to the respective manuals, though.
Cheers,
-- KS
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