jwhendy comments on Spaced Repetition literature review prize: And the winner is... - Less Wrong

26 Post author: jsalvatier 19 August 2011 08:35PM

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Comment author: jwhendy 31 August 2011 10:40:43PM 1 point [-]

Your website might have stripped out the division sign. I see:

The concentration is 100 mg of nicotine per ml, there are 1000 ml per liter, one wants 2 mg per dose, so 100×10002=50000 doses...

Took me a sec to figure out it should be 100 x 1000 / 2.

Comment author: gwern 31 August 2011 11:14:23PM 1 point [-]

That's just you. Your web browser is not running Javascript, you don't have the fonts, or something. I see the division as I wrote it in Firefox: http://i.imgur.com/c2U2R.png

Comment author: arundelo 31 August 2011 11:34:06PM 2 points [-]

I see the HTML source uses MathML:

<math display="inline" xmlns="<http://www.w3.org/1998/Math/MathML>"><mrow><mfrac><mrow><mn>100</mn><mo>&#215;</mo><mn>1000</mn></mrow><mn>2</mn></mfrac><mo>=</mo><mn>50000</mn></mrow></math>

I couldn't tell from the screenshot what browser and OS you're using but for me (on Linux), it shows up as "100×10002" in Chrome but as a (correct) fraction in Firefox (3.5). In both it acts like "100×10002" in the contexts of searching and copying/pasting.

Comment author: jwhendy 01 September 2011 02:42:03AM 1 point [-]

Ditto -- on Arch linux, chrome with javascript enabled does not work; firefox 3.6 does.

Comment author: gwern 01 September 2011 12:56:08AM 0 points [-]

I see the HTML source uses MathML:

Correct. The Javascript is because apparently browsers have to be forced to render the MathML; I don't understand the details.

I couldn't tell from the screenshot what browser and OS you're using

Debian unstable's Iceweasel.

Comment author: Douglas_Knight 01 September 2011 02:03:38AM 2 points [-]

I tried three browsers and in none of them did javascript make a difference. (I had both success and failure.)

Comment author: arundelo 01 September 2011 01:16:08AM 1 point [-]

(Just in case it wasn't clear, I do have JavaScript enabled in Chrome.)

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