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| <h3>When I enter<KBD> 3xy </KBD>the number 3 comes out in italics. Is this a bug?</h3> |
| <P>Not really. What happens here is, that Math uses multi-letter |
| variables, which are common in some disciplines, like economy. The |
| rule is that a variable consists of a sequence of letters, numbers |
| and dots (the first character can not be a dot).</P> |
| <P>So when you enter 3xy this is considered a variable - and |
| variables are typeset in italics. The only odd thing here is, that a |
| variable can start with a number.</P> |
| <P>The correct way to enter the expression if you mean 3 times x |
| times y is<KBD> 3 x y </KBD>(with spaces between the characters).</P> |
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