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Calculator with "tapes"

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  Calculator with "tapes" Ken Heard <kenslists@teksavvy.com> - 2018-07-16 19:00 +0200
    Re: Calculator with "tapes" Joe <joe@jretrading.com> - 2018-07-16 19:10 +0200
      Re: Calculator with "tapes" Jude DaShiell <jdashiel@panix.com> - 2018-07-16 19:50 +0200
    Re: Calculator with "tapes" Boyan Penkov <boyan.penkov@gmail.com> - 2018-07-16 19:20 +0200
    Re: Calculator with "tapes" Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-07-16 19:20 +0200
    Re: Calculator with "tapes" Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-07-16 19:50 +0200
    Calculator with "tapes" "Thomas Schmitt" <scdbackup@gmx.net> - 2018-07-16 20:00 +0200
    Re: Calculator with "tapes" Eric S Fraga <e.fraga@ucl.ac.uk> - 2018-07-16 23:10 +0200
    Re: Calculator with "tapes" Ben Caradoc-Davies <ben@transient.nz> - 2018-07-17 02:00 +0200
    Re: Calculator with "tapes" Zenaan Harkness <zenaan@freedbms.net> - 2018-07-17 02:20 +0200
      Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-17 03:10 +0200
        Re: Calculator with "tapes" Curt <curty@free.fr> - 2018-07-17 11:20 +0200
          Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-17 12:40 +0200
            Re: Calculator with "tapes" Curt <curty@free.fr> - 2018-07-17 13:40 +0200
              Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-17 14:30 +0200
                Re: Calculator with "tapes" Curt <curty@free.fr> - 2018-07-17 14:50 +0200
                  Re: Calculator with "tapes" Greg Wooledge <wooledg@eeg.ccf.org> - 2018-07-17 15:00 +0200
        Re: Calculator with "tapes" Zenaan Harkness <zenaan@freedbms.net> - 2018-07-23 04:30 +0200
          Re: Calculator with "tapes" Curt <curty@free.fr> - 2018-07-23 09:30 +0200
          Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-23 13:10 +0200
            Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-23 13:20 +0200
              Re: Calculator with "tapes" <tomas@tuxteam.de> - 2018-07-23 13:30 +0200
                Re: Calculator with "tapes" Stefan Krusche <linux@stefan-krusche.de> - 2018-07-23 13:50 +0200
            Re: Calculator with "tapes" <tomas@tuxteam.de> - 2018-07-23 13:30 +0200
    Re: Calculator with "tapes" Piotr <zaxonxp45@gmail.com> - 2018-07-17 07:30 +0200
    Re: Calculator with "tapes" John Darrah <xyllyx@gmail.com> - 2018-07-23 16:50 +0200

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#197938

Am Montag 23 Juli 2018 schrieb Stefan Krusche:
> Am Montag 23 Juli 2018 schrieb Zenaan Harkness:
> > On Tue, Jul 17, 2018 at 03:04:41AM +0200, Stefan Krusche wrote:
> > > Am Dienstag 17 Juli 2018 schrieb Zenaan Harkness:
> > > > bc FTW - so quick, so handy
> > > >
> > > > First line I always run though is:
> > > >  scale=9
> > >
> > > When you don't want to type this every time:
> > >
> > > $ cat ~/.bcrc
> > > scale=3
> >
> > OK, so I created ~/.bcrc, setting scale to 20:
> >
> > $ cat ~/.bcrc
> > scale=20
> >
> > BUT, when I run bc, I get:
> >
> > $ bc
> > bc 1.06.95
> > Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software
> > Foundation, Inc.
> > This is free software with ABSOLUTELY NO WARRANTY.
> > For details type `warranty'.
> > scale
> > 0
> > ^D
> >
> > What am I doing wrong here?

The problem is probably solved with Curt's and Greg's answers, but still to 
answer your question: ~/.bcrc is not a default config file for bc (sorry, 
didn't think about having it created on my own when I wrote my previous post) 
and is only read if you have "BC_ENV_ARGS=~/.bcrc" in your environment or as an 
argument to bc on the command line.

Kind regards,
Stefan

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#197940

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On Mon, Jul 23, 2018 at 01:19:44PM +0200, Stefan Krusche wrote:

[...]

> The problem is probably solved with Curt's and Greg's answers [...]
> ~/.bcrc is not a default config file for bc [...] and is only read
> if you have "BC_ENV_ARGS=~/.bcrc" in your environment [...]

Ah, I see the solution is already there. Sorry for not paying attention

Cheers
- -- t
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#197942

Am Montag 23 Juli 2018 schrieb tomas@tuxteam.de:
> On Mon, Jul 23, 2018 at 01:19:44PM +0200, Stefan Krusche wrote:
>
> [...]
>
> > The problem is probably solved with Curt's and Greg's answers [...]
> > ~/.bcrc is not a default config file for bc [...] and is only read
> > if you have "BC_ENV_ARGS=~/.bcrc" in your environment [...]
>
> Ah, I see the solution is already there. Sorry for not paying attention

Your're welcome. I often find more details just after I hit "send" ;-)
Regards,
Stefan

>
> Cheers
> -- t

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#197941

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On Mon, Jul 23, 2018 at 01:01:51PM +0200, Stefan Krusche wrote:

[...]

> > BUT, when I run bc, I get:
> >
> > $ bc
> > bc 1.06.95
> > Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software
> > Foundation, Inc.
> > This is free software with ABSOLUTELY NO WARRANTY.
> > For details type `warranty'.
> > scale
> > 0
> > ^D
> >
> >
> > What am I doing wrong here?

Hm. Same for me...

> No idea... .bcrc saved? And readable? Sorry, can't help.
> Stefan

Note that there's no mention of .bcrc in bc's man page...
Neither in bc's info page.

Running under strace I only see it trying to access ~/.inputrc and
~/.terminfo.

It seems you'll have to provide the init file explicitly on the command
line -- or to set the BC_ENV_ARGS. This works for me:

  echo "scale=0" > .my-bc-init-file # choose a better name :-)
  BC_ENV_ARGS=.my-bc-init-file bc

  bc 1.06.95
  Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
  This is free software with ABSOLUTELY NO WARRANTY.
  For details type `warranty'. 
  scale
  20

Season to taste :-)

Cheers
- -- tomás
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#197718

On Mon, 16 Jul 2018 12:57:58 -0400
Ken Heard <kenslists@teksavvy.com> wrote:

> Does Debian have a calculator package which has the equivalent of the 
> tape produced by mechanical machines to show the entire calculation.  I 
> find such "tapes" essential when for example I am adding a long list of 
> numbers and need to check after the addition is done to verify that all 
> the numbers were entered correctly.

I use speedcrunch under X11 for this.

speedcrunch/stable,now 0.12.0-1 i386 [installed]
  High precision calculator

Regards,
Piotr

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#197944

On Mon, Jul 16, 2018 at 09:59:10AM -0700, Ken Heard wrote:
> Does Debian have a calculator package which has the equivalent of the tape
> produced by mechanical machines to show the entire calculation.  I find such
> "tapes" essential when for example I am adding a long list of numbers and
> need to check after the addition is done to verify that all the numbers were
> entered correctly.
> 
> Regards, Ken
> 

I believe that "apcalc" is something you should look at. It 
has a nice command line history similar to using bash nd you 
can review your work by just typing "less .calc_history".

-- 
john

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