On Wednesday, January 1, 2014 10:58:43 AM UTC-8, Buck Golemon wrote:
Below is a link to a worksheet I've been working on. It's provided as a
public pdf on google drive, as I'm still looking for a better way to share
worksheets. You can easily download the pdf if you prefer.
Please let me
On Apr 22, 2014 5:45 PM, David Joyner wdjoy...@gmail.com wrote:
On Wed, Jan 1, 2014 at 1:58 PM, Buck Golemon workithar...@gmail.com
wrote:
Below is a link to a worksheet I've been working on. It's provided as a
public pdf on google drive, as I'm still looking for a better way to
share
I wanted to show some of my work today to ask for comment and show a couple
minor issues I ran into.
My work is in a worksheet. I can manually convert it to a sage-terminal
style, but it's a time-consuming process, and the result is worse.
Is there any reasonable way to show my worksheet on the
Below is a link to a worksheet I've been working on. It's provided as a
public pdf on google drive, as I'm still looking for a better way to share
worksheets. You can easily download the pdf if you prefer.
Please let me know if I've done anything the hard way, or if you see a
cleaner way to
On Wednesday, January 1, 2014 11:06:32 AM UTC-8, Nils Bruin wrote:
On Wednesday, January 1, 2014 10:44:51 AM UTC-8, Buck Golemon wrote:
My work is in a worksheet. I can manually convert it to a sage-terminal
style, but it's a time-consuming process, and the result is worse
, Buck Golemon buck.2...@gmail.com wrote:
So I've succeeded in telling maxima how to simplify this, but it doesn't
translate through to sage:
sage: print maxima.eval('''
declare([x, y], real)
solve(erf(x) = erf(y), x)
''')
done
[x=inverse_erf(erf(y))]
sage: print maxima.eval
), so must have an inverse function (-1,1)-R.
How you tell Sage this needs a Sage expert.
On Saturday, 28 December 2013 19:46:49 UTC, Buck Golemon wrote:
I've found here:
http://mathworld.wolfram.com/InverseErf.html
[image: erf^(-1)(erf(x))][image: =][image: x,]
(2)
with the identity holding
7.13(i) of DLMF), so this
simplification would be incorrect.
I do not know how to tell Sage that you want real-valued
functions/variables, when of course it would be correct to do the
simplification.
On Friday, 27 December 2013 22:40:40 UTC, Buck Golemon wrote:
1) Sage seems unable
Yes, I can, but it doesn't have the intended (or any) effect:
sage: assume(x, 'real')
sage: assume(y, 'real')
sage: assumptions()
[x is real, y is real]
sage: solve(erf(x) == erf(y), x)
[x == inverse_erf(erf(y))]
On Saturday, December 28, 2013 11:27:09 AM UTC-8, Buck Golemon wrote:
Thanks
I've found here:
http://mathworld.wolfram.com/InverseErf.html
[image: erf^(-1)(erf(x))][image: =][image: x,]
(2)
with the identity holding for [image: x in R]
Is this a bit of information that can be added (by me?) to sage?
On Saturday, December 28, 2013 11:32:02 AM UTC-8, Buck Golemon wrote
1) Sage seems unable to reduce `erf(x) == erf(y)` to `x == y`. How can I help
this along?
solve(erf(x) == erf(y), x)[0].simplify_full()
Actual output: x == inverse_erf(erf(y))
Expected output: x == y
I had expected that sage would trivially reduce `inverse_erf(erf(y))` to `y`.
2) This output
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