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Key for modular arithmetic - Printable Version

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Key for modular arithmetic - Alberto Candel - 03-31-2018 03:32 PM

Good morning,

In CAS, modular arithmetic can be performed with the "%%" symbol. As far as I know, typing that requires about 9 keystrokes (the % symbol is in the Chars table). Is there a shortcut for "mod" in CAS? I tried creating a userkey program, but cannot do much better because one must use the MOD operator, it doesn't work with the %%.

Any help would be welcome. Thanks.


RE: Key for modular arithmetic - Carlos295pz - 03-31-2018 03:41 PM

It should work with MOD, if it requires a function own of CAS can use irem().


RE: Key for modular arithmetic - Alberto Candel - 03-31-2018 03:54 PM

(03-31-2018 03:41 PM)Carlos295pz Wrote:  It should work with MOD, if it requires a function own of CAS can use irem().

Thanks. It does work with MOD. What I was wondering was if there is a single keystroke that would perform say
2^36 %% 73. Typing the two %% takes a while, and looking up MOD does too.


RE: Key for modular arithmetic - Tim Wessman - 03-31-2018 06:47 PM

Hello,

I know it isn't much consolation, but you should be able to do SHIFT-CHARS, TAP % Double tap %, then press ENTER or OK and put both in at once.


RE: Key for modular arithmetic - Alberto Candel - 03-31-2018 09:07 PM

(03-31-2018 06:47 PM)Tim Wessman Wrote:  Hello,

I know it isn't much consolation, but you should be able to do SHIFT-CHARS, TAP % Double tap %, then press ENTER or OK and put both in at once.

Thanks. That is exactly what I have been doing. It is OK for a one-time operation, but ... I was just wondering if there was a direct access to the % symbol.


RE: Key for modular arithmetic - Alberto Candel - 03-31-2018 09:18 PM

Perhaps there is a way to leave the USER keyboard on for more that just one keystroke, is there?


RE: Key for modular arithmetic - Carlos295pz - 04-01-2018 01:18 AM

(03-31-2018 09:18 PM)Alberto Candel Wrote:  Perhaps there is a way to leave the USER keyboard on for more that just one keystroke, is there?

Shift Help Shift Help


RE: Key for modular arithmetic - Alberto Candel - 04-01-2018 04:57 AM

(04-01-2018 01:18 AM)Carlos295pz Wrote:  
(03-31-2018 09:18 PM)Alberto Candel Wrote:  Perhaps there is a way to leave the USER keyboard on for more that just one keystroke, is there?

Shift Help Shift Help

Cool! Thanks!