Help With Using the Math Module

[Dieter]

(04-23-2018 03:30 PM)ID_girl Wrote:  This is great information. Thank you so much for writing up the explanation.

You're welcome. But I just noticed I wrote that VIEW displays X. Of course you can VIEW any register: VIEW X, VIEW Z, VIEW 01, VIEW IND 15 ... ;-)

(04-23-2018 03:30 PM)ID_girl Wrote:  Before I read your reply I had been wondering how best to write a program that can have the desired output with and without the printer installed.

Here VIEW and AVIEW indeed are very useful. They are available on every standard HP41 so that no printer-specific commands like PRX or PRA are required. There even is an ADV command on every '41 that prints a blank line (paper advance). So you can write programs that run on any HP41 and nevertheless provide some formatted output if a printer is attached. On the other hand you can CF 21 to avoid that output like e.g. a short error message gets printed.

In the early Eighties I used these features quite a lot in my own programs – I wanted to acquire a printer sooner or later. But finally I never did... #-)

Dieter