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Proposal: Linear Algebra Study Group

news.ycombinator.com

41–50 of 67 posts

Re: Proposal: Linear Algebra Study Group

#41

I think this is a great idea, although I don't know if I'm a good candidate for it, since I never officially got past a Pre-Calculus level. I recently decided in the past couple weeks to go through Khan Academy from the very beginning (simple arithmetic! :), and run through every one of their exercises. I'm moving pretty fast through all the refresher courses, and I'm amazed at what I've retained (and disappointed at…

For the most part, I don't even think you need 18.01. 02 or 03.

there may be a few applications in 18.06 that you miss out on but it wont' be a big deal.

Re: Proposal: Linear Algebra Study Group

#42
post #38
post #34

It would be best to do this somewhere that supports MathJax ( http://www.mathjax.org/ ). HN does not, which could make it awkward to discuss math in an HN thread. There are three reasonable ways to add MathJax support to a site. 1. Get the site owner to do it. The site owner simply has to toss in a script tag that loads MathJax from the MathJax CDN and sets some configuration options. Someone would need to convince P…

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

[deleted]

Re: Proposal: Linear Algebra Study Group

#44
post #38
post #34

It would be best to do this somewhere that supports MathJax ( http://www.mathjax.org/ ). HN does not, which could make it awkward to discuss math in an HN thread. There are three reasonable ways to add MathJax support to a site. 1. Get the site owner to do it. The site owner simply has to toss in a script tag that loads MathJax from the MathJax CDN and sets some configuration options. Someone would need to convince P…

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Works for me on Chrome 14.

Testing: [;\frac{du}{dt};] [;\left[ \begin{array}{cc} 1 & 0 \\ 0 & 1 \end{array} \right];]

Re: Proposal: Linear Algebra Study Group

#45
post #38
post #34

It would be best to do this somewhere that supports MathJax ( http://www.mathjax.org/ ). HN does not, which could make it awkward to discuss math in an HN thread. There are three reasonable ways to add MathJax support to a site. 1. Get the site owner to do it. The site owner simply has to toss in a script tag that loads MathJax from the MathJax CDN and sets some configuration options. Someone would need to convince P…

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Note that /r/math on Reddit is using those delimiters because that's what Tex The World uses. I don't see any particular reason to use those over just sticking with the MathJax defaults, which are backslash-brackets and dollar dollar for display math, and backslash-parens for inline math.

For your script, this can be achieved simply by deleting the line in the configuration that sets the inline math delimiters.

I've tested, and the default delimiters seem to work fine on HN.

Re: Proposal: Linear Algebra Study Group

#46
post #45
post #38

Earlier quoted context omitted.

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Note that /r/math on Reddit is using those delimiters because that's what Tex The World uses. I don't see any particular reason to use those over just sticking with the MathJax defaults, which are backslash-brackets and dollar dollar for display math, and backslash-parens for inline math. For your script, this can be achieved simply by deleting the line in the configuration that sets the inline math delimiters. I've…

[deleted]

Re: Proposal: Linear Algebra Study Group

#47
post #45
post #38

Earlier quoted context omitted.

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Note that /r/math on Reddit is using those delimiters because that's what Tex The World uses. I don't see any particular reason to use those over just sticking with the MathJax defaults, which are backslash-brackets and dollar dollar for display math, and backslash-parens for inline math. For your script, this can be achieved simply by deleting the line in the configuration that sets the inline math delimiters. I've…

[deleted]

Re: Proposal: Linear Algebra Study Group

#48
post #45
post #38

Earlier quoted context omitted.

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Note that /r/math on Reddit is using those delimiters because that's what Tex The World uses. I don't see any particular reason to use those over just sticking with the MathJax defaults, which are backslash-brackets and dollar dollar for display math, and backslash-parens for inline math. For your script, this can be achieved simply by deleting the line in the configuration that sets the inline math delimiters. I've…

[deleted]

Re: Proposal: Linear Algebra Study Group

#50
post #45
post #38

Earlier quoted context omitted.

Testing new HN version of script: [;A\boldsymbol{x}=\lambda\boldsymbol{x};] Seems to be working, in Chrome at least. Can some other people try it out? http://userscripts.org/scripts/show/112966 Put latex code inside square bracket semicolon pairs: [ ;...code...; ]

Note that /r/math on Reddit is using those delimiters because that's what Tex The World uses. I don't see any particular reason to use those over just sticking with the MathJax defaults, which are backslash-brackets and dollar dollar for display math, and backslash-parens for inline math. For your script, this can be achieved simply by deleting the line in the configuration that sets the inline math delimiters. I've…

Cool, thanks. That would be better.

Testing new version: \(\sum_{i=1}^n c_i \phi(\|\boldsymbol{x}-\boldsymbol{x}_i\|)\)

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