Can I accept .1 instead of 0.1?

[David Wishart]

A question popped up today as to whether it is possible to accept a decimal answer without a leading digit. As far as I can see, Numbas does not accept the likes of .1 either as a number entry or mathematical expression although it doesn't mark it wrong, just does not accept it. The discussion here has two schools of thought (I'm in the first!)

Writing a decimal without a leading digit before the decimal point is not normal and the students should know better (especially once the system tells them it isn't accepted).

The students may do this anyway  and it isn't wrong as such in terms of numerical value.

[Christian Lawson-Perfect]

I've just noticed this has been in my inbox since February! Sorry!

I should have just replied to say this has been in the to-do list since 2019: https://github.com/numbas/Numbas/issues/616

The complicated part about implementing it is that we'd have to add code to handle it for each of the number notation styles. I'd have to have a think about how exactly to do that.

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