User talk:Shenron

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TeX
Your edits to law of tangents prompt some comments:


 * If you write $$ a\,tan \alpha$$, then what you see is this:


 * $$ a\,tan \alpha$$


 * But if you write $$ a\tan \alpha\,$$, then what you see is this:


 * $$ a\tan \alpha\,$$


 * The latter is standard. The backslash before "tan" not only prevents italicization but provides proper spacing both before and after "tan".  The backslash-comma at the end is needed to make it render properly on some browsers.


 * If you write $$ \tan ( \frac{\alpha + \beta}{2})$$, then you see this:


 * $$ \tan ( \frac{\alpha + \beta}{2})$$


 * But if you write $$ \tan \left( \frac{\alpha + \beta}{2}\right)$$, then you see this:


 * $$ \tan \left( \frac{\alpha + \beta}{2}\right)$$


 * So using \left and \right makes the parentheses adapt to the size of the expression that they enclose. Michael Hardy 01:54, 15 January 2007 (UTC)