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* Calc: Typo in the algebra tutorial
@ 2021-12-03 18:35 H. Dieter Wilhelm
  2021-12-03 18:52 ` H. Dieter Wilhelm
  0 siblings, 1 reply; 6+ messages in thread
From: H. Dieter Wilhelm @ 2021-12-03 18:35 UTC (permalink / raw)
  To: help-gnu-emacs


Hello Calcs

There might be a typo in the (info "(calc) Basic Algebra Tutorial").

It says in the third input example ("(18 - 2 y) x^2 - 6 x^4 + 6 y" is on
the stack):

     1:  17 x^2 - 6 x^4 + 3      1:  -25
         .                           .

         1:2 s l y <RET>               2 s l x <RET>

But I think the first input should be "' 1:2 <RET> s l y <RET>".

What do you think?

     Dieter

-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany




^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Calc: Typo in the algebra tutorial
  2021-12-03 18:35 Calc: Typo in the algebra tutorial H. Dieter Wilhelm
@ 2021-12-03 18:52 ` H. Dieter Wilhelm
  2021-12-04 10:45   ` Daniel Fleischer
  0 siblings, 1 reply; 6+ messages in thread
From: H. Dieter Wilhelm @ 2021-12-03 18:52 UTC (permalink / raw)
  To: help-gnu-emacs

"H. Dieter Wilhelm" <dieter@duenenhof-wilhelm.de> writes:

> Hello Calcs
>
> There might be a typo in the (info "(calc) Basic Algebra Tutorial").
>
> It says in the third input example ("(18 - 2 y) x^2 - 6 x^4 + 6 y" is on
> the stack):
>
>      1:  17 x^2 - 6 x^4 + 3      1:  -25
>          .                           .
>
>          1:2 s l y <RET>               2 s l x <RET>
>
> But I think the first input should be "' 1:2 <RET> s l y <RET>".

Actually an input "1:2 s l y <RET>" is working without switching to the
Algebraic mode first, Calc is so damn good!

I'm sorry for the noice

    Dieter
-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Calc: Typo in the algebra tutorial
  2021-12-03 18:52 ` H. Dieter Wilhelm
@ 2021-12-04 10:45   ` Daniel Fleischer
  2021-12-04 11:03     ` Emanuel Berg via Users list for the GNU Emacs text editor
  2021-12-04 20:34     ` H. Dieter Wilhelm
  0 siblings, 2 replies; 6+ messages in thread
From: Daniel Fleischer @ 2021-12-04 10:45 UTC (permalink / raw)
  To: H. Dieter Wilhelm; +Cc: help-gnu-emacs

H. Dieter Wilhelm [2021-12-03 Fri 19:52] wrote:

> Actually an input "1:2 s l y <RET>" is working without switching to the
> Algebraic mode first, Calc is so damn good!

Yes in this case it's the same. Another example "1 <RET> 2 /" is the
same as "1 <RET> 2 <RET> /". If you're entering numbers then commands
are recognized immediately. If you're in algebraic insert mode, started
with an ' then letters are part of the input. You learn this with
experience. Enjoy!

-- 

Daniel Fleischer



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Calc: Typo in the algebra tutorial
  2021-12-04 10:45   ` Daniel Fleischer
@ 2021-12-04 11:03     ` Emanuel Berg via Users list for the GNU Emacs text editor
  2021-12-04 20:38       ` H. Dieter Wilhelm
  2021-12-04 20:34     ` H. Dieter Wilhelm
  1 sibling, 1 reply; 6+ messages in thread
From: Emanuel Berg via Users list for the GNU Emacs text editor @ 2021-12-04 11:03 UTC (permalink / raw)
  To: help-gnu-emacs

Daniel Fleischer wrote:

> If you're in algebraic insert mode, started with an ' then
> letters are part of the input. You learn this
> with experience.

_And_ on gmane.emacs.help :)

-- 
underground experts united
https://dataswamp.org/~incal




^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Calc: Typo in the algebra tutorial
  2021-12-04 10:45   ` Daniel Fleischer
  2021-12-04 11:03     ` Emanuel Berg via Users list for the GNU Emacs text editor
@ 2021-12-04 20:34     ` H. Dieter Wilhelm
  1 sibling, 0 replies; 6+ messages in thread
From: H. Dieter Wilhelm @ 2021-12-04 20:34 UTC (permalink / raw)
  To: Daniel Fleischer; +Cc: help-gnu-emacs

Daniel Fleischer <danflscr@gmail.com> writes:

> H. Dieter Wilhelm [2021-12-03 Fri 19:52] wrote:
>
>> Actually an input "1:2 s l y <RET>" is working without switching to the
>> Algebraic mode first, Calc is so damn good!
>
> Yes in this case it's the same. Another example "1 <RET> 2 /" is the
> same as "1 <RET> 2 <RET> /". If you're entering numbers then commands
> are recognized immediately. If you're in algebraic insert mode, started
> with an ' then letters are part of the input. You learn this with
> experience. Enjoy!

Right, thank you :-)

      Dieter

-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Calc: Typo in the algebra tutorial
  2021-12-04 11:03     ` Emanuel Berg via Users list for the GNU Emacs text editor
@ 2021-12-04 20:38       ` H. Dieter Wilhelm
  0 siblings, 0 replies; 6+ messages in thread
From: H. Dieter Wilhelm @ 2021-12-04 20:38 UTC (permalink / raw)
  To: help-gnu-emacs

Emanuel Berg via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> Daniel Fleischer wrote:
>
>> If you're in algebraic insert mode, started with an ' then
>> letters are part of the input. You learn this
>> with experience.
>
> _And_ on gmane.emacs.help :)

Thank heaven, ehhm, thank Emacs ;-)

      Dieter
-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-12-04 20:38 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-12-03 18:35 Calc: Typo in the algebra tutorial H. Dieter Wilhelm
2021-12-03 18:52 ` H. Dieter Wilhelm
2021-12-04 10:45   ` Daniel Fleischer
2021-12-04 11:03     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-12-04 20:38       ` H. Dieter Wilhelm
2021-12-04 20:34     ` H. Dieter Wilhelm

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