\cdot

[Benjamin Morris]

I scoured the help docs and couldn't find anywhere how to add the dot for multiplication. The LaTex \cdot doesn't work. Help?

[Christian Lawson-Perfect]

Do you mean instead of the \times symbol, when creating an expression using \simplify? If so, there's no easy way at the moment of saying you want \cdot instead of \times. I could add it as an option, though that's opening a can of worms - people have different, and contradictory, opinions on which contexts should use \cdot instead of \times, and treating it systematically could get complicated quickly.

If that's not what you mean, or what I said doesn't make any sense, can you point me to the question you're working on, so I can see what you're trying to achieve?

On Mon, 3 Oct 2016 at 01:38 Benjamin Morris <benjaminc...@gmail.com> wrote:

I scoured the help docs and couldn't find anywhere how to add the dot for multiplication. The LaTex \cdot doesn't work. Help?

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[Benjamin Morris]

That is what I meant. I was writing a problem, multiplying two fractions. Where I teach, the appropriate symbol between these would be the dot... I understand if it  is not doable. I could always put the fractions in parentheses.

Thanks,
Ben

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[David Martin]

so $\frac{a}{n}\cdot\frac{c}{d}$ doesn't give you the desired output? It seems to work for me.

..d

On Monday, 3 October 2016 12:58:33 UTC+1, Benjamin Morris wrote:

That is what I meant. I was writing a problem, multiplying two fractions. Where I teach, the appropriate symbol between these would be the dot... I understand if it  is not doable. I could always put the fractions in parentheses.

Thanks,
Ben

On Oct 3, 2016 7:41 AM, "Christian Lawson-Perfect" <christia...@gmail.com> wrote:

Do you mean instead of the \times symbol, when creating an expression using \simplify? If so, there's no easy way at the moment of saying you want \cdot instead of \times. I could add it as an option, though that's opening a can of worms - people have different, and contradictory, opinions on which contexts should use \cdot instead of \times, and treating it systematically could get complicated quickly.

If that's not what you mean, or what I said doesn't make any sense, can you point me to the question you're working on, so I can see what you're trying to achieve?

On Mon, 3 Oct 2016 at 01:38 Benjamin Morris <benjaminc...@gmail.com> wrote:

I scoured the help docs and couldn't find anywhere how to add the dot for multiplication. The LaTex \cdot doesn't work. Help?

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[Christian Lawson-Perfect]

David, the problem is getting the dot to appear inside a \simplify expression. 

For example, $\simplify{ (a/b) * (c/d) }$ is rendered as $\frac{a}{b} \frac{c}{d}$ - Numbas doesn't think an explicit multiplication symbol is necessary between two fractions.

[Dr David Martin]

I've never seen the point of using \simplify. I would expect there are some use cases that I don't find though.

Outside \simplify  it works fine.

[Benjamin Morris]

It does work outside of simplify. Thanks.