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2020-06-19 01:28:34 +0200 | commented answer | Ubuntu 18.04 apt install - ModuleNotFoundError: No module named 'sage' Oh and the :: syntax in the environment.yml forces the module to be loaded from ether particular repository. It is a supported, but undocumented feature. I have asked for it to be documented. |
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2020-06-19 01:25:15 +0200 | commented answer | Can I express an abstract, symbolic range of reals? Thanks @Sebastien - I think you are right. Though I found numpy arrays seem to do the ellipses nicely. Maybe I really need to write a class for a symbolically parameterised range, which can be realised. Seems weird not to have one. I keep feeling I’ve missed something obvious. Very hard to work out which way to do things when starting out - unsurprisingly :-) |
2020-06-15 06:26:14 +0200 | commented answer | Can I express an abstract, symbolic range of reals? The answer from @Sebastien displayed ellipses in its output summary, maybe this feature is broken in sage's jupyter notebook implementation? |
2020-06-15 06:24:51 +0200 | answered a question | Can I express an abstract, symbolic range of reals? This is not an abstract symbolic expression for a range - which I would still like, but this answer uses numpy to provide its default output summary with ellipses for large arrays. Solves my practical problem of too much output. |
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2020-06-15 00:55:01 +0200 | commented answer | Why doesnt 'Answer your own question" work? See @rburing answer - I was most likely lacking Karma :-) |
2020-06-15 00:54:16 +0200 | commented answer | Why doesnt 'Answer your own question" work? Thanks @rburing, There was no error message, just deathly quiet, though if I tried again to enter an answer, the text of my previous attempt was restored. So it's weird that it worked when I logged in using FireFox... Probably I was mistaken. I see my Karma is now 51. So Chrome/Firefox probably wasn't the issue. |
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2020-06-14 23:42:06 +0200 | answered a question | Why doesnt 'Answer your own question" work? Fails if using Google Chrome Ubuntu 18.04 |
2020-06-14 23:38:36 +0200 | commented question | Ubuntu 18.04 apt install - ModuleNotFoundError: No module named 'sage' That's like 'cycle-the-power'. Which we all use sometimes :-) |
2020-06-14 23:36:51 +0200 | answered a question | Ubuntu 18.04 apt install - ModuleNotFoundError: No module named 'sage' I have a reliable install method for SageMath on Ubuntu 18.04. referring to: https://doc.sagemath.org/html/en/inst... in the conda base environment: using an ./environment.yml in a chosen directory: run: |
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2020-06-14 23:26:00 +0200 | asked a question | Why doesnt 'Answer your own question" work? I have tried to answer my own question. I am logged in.
I tap the Cheers... |
2020-06-14 21:44:14 +0200 | commented answer | Can I express an abstract, symbolic range of reals? Thanks, Have already tried that. Same swamped output. Want to be able to have symbolic parameters to the range expression. Or equivalent - with a compact show() output. srange( a, b, delta) |
2020-06-14 21:39:10 +0200 | commented answer | 'DeprecationWarning' when using list comprehension OK, Thank-you. |
2020-06-13 10:14:21 +0200 | commented question | 'DeprecationWarning' when using list comprehension list_plot(list(map(sigmoid,input_range))) is ok |
2020-06-13 10:03:51 +0200 | commented question | 'DeprecationWarning' when using list comprehension markup keeps failing :-( |
2020-06-13 09:58:33 +0200 | asked a question | 'DeprecationWarning' when using list comprehension input_range = srange(-3,3,.02) [sigmoid(x) for x in input_range] gives warning: Am I really doing something wrong here? List comprehension syntax is prefered idiom in Python AFAIK |
2020-06-13 04:47:42 +0200 | commented question | Can I express an abstract, symbolic range of reals? In Jupyter notebook I'm up to here, could be horribly unconventional: |
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2020-06-13 04:03:56 +0200 | asked a question | Can I express an abstract, symbolic range of reals? Hello, I'm very new at sage. I'd like to express a range like range(-3.0,3.0,0.02) but with symbols for all the parameters, like range(a,b,delta), that displays nicely with show(). I would like to be able to substitute in floats at some later stage. a. I'm not sure what a conventional symbolic expression for a range of floats is b. Not sure how to express it in SageMath. My goal is to be able to express constructing a chain rule over a finite input range. I seem to be able to express the chaining of functions ok, but am getting stuck with what i'm calling the constant function which is this range. If I use the range(-3.0,3.0,0.02) I get swamped by the output. P.S. I don't want to use a built-in differentiate, I'm going to use finite differences. Cheers... |
2020-05-26 10:19:36 +0200 | asked a question | Ubuntu 18.04 apt install - ModuleNotFoundError: No module named 'sage' I'm on Ubuntu 18.04.4 LTS. then Conda provides my Python. I did not install sagemath using Conda - couldn't get it to run. I was assuming the platform package would work. Is there a simple solution? Cheers, --PG |