* bug#12687: 24.2.50; calc volume units conversion
@ 2012-10-19 22:25 Edmund Kademan
2012-10-20 4:18 ` Jay Belanger
0 siblings, 1 reply; 2+ messages in thread
From: Edmund Kademan @ 2012-10-19 22:25 UTC (permalink / raw)
To: 12687
emacs -Q
C-x ** ;start calc
'gal RET ;enter 1 gallon
uc ;try to convert to new units
At this point calc should prompt for new units, but it does not.
A workaround for me is to redefine the math-get-standard-units
function:
*** calc-units.el 2012-10-19 17:35:54.000000000 -0400
--- calc-units-changed.el 2012-10-19 18:14:30.000000000 -0400
***************
*** 383,390 ****
(defun math-get-standard-units (expr)
"Return the standard units in EXPR."
! (math-simplify-units
! (math-extract-units
(math-to-standard-units expr nil))))
(defun math-get-units (expr)
--- 383,390 ----
(defun math-get-standard-units (expr)
"Return the standard units in EXPR."
! (math-extract-units
! (math-simplify-units
(math-to-standard-units expr nil))))
(defun math-get-units (expr)
In GNU Emacs 24.2.50.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
of 2012-10-19 on dl
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^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#12687: 24.2.50; calc volume units conversion
2012-10-19 22:25 bug#12687: 24.2.50; calc volume units conversion Edmund Kademan
@ 2012-10-20 4:18 ` Jay Belanger
0 siblings, 0 replies; 2+ messages in thread
From: Jay Belanger @ 2012-10-20 4:18 UTC (permalink / raw)
To: Edmund Kademan; +Cc: 12687-done
> emacs -Q
> C-x ** ;start calc
> 'gal RET ;enter 1 gallon
> uc ;try to convert to new units
>
> At this point calc should prompt for new units, but it does not.
Oh; thanks for catching this!
> A workaround for me is to redefine the math-get-standard-units
> function:
That works for this case (but for the wrong reasons ... for example, if
you convert gallons to liters and then convert gallons again, it won't
offer liters as a default). The problem was that `math-extract-units'
wasn't dealing with powers of units (and the standard units for volume
are m^3). This has been fixed in bzr.
Thanks again,
Jay
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-10-19 22:25 bug#12687: 24.2.50; calc volume units conversion Edmund Kademan
2012-10-20 4:18 ` Jay Belanger
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