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    #1
    Can someone please help me with the correct Latex code for the functor Hom_R( _ , X)

    When I try to get the correct symbol for the functor I get $ \displaystyle Hom_R( _ , X)$ , that is I get a symbol without the _ displayed.

    Can someone please help me with the correct code?

    Peter

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    #2
    Quote Originally Posted by Peter View Post
    Can someone please help me with the correct Latex code for the functor Hom_R( _ , X)

    When I try to get the correct symbol for the functor I get $ \displaystyle Hom_R( _ , X)$ , that is I get a symbol without the _ displayed.

    Can someone please help me with the correct code?

    Peter
    Hi Peter,

    You need to "escape" the underscore with a backslash.
    That is: Hom_R( \_ , X)
    This shows up as: $ \displaystyle Hom_R( \_ , X)$

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    #3
    $ \displaystyle \operatorname{Hom} \_ _R ( \_ ,X)$
    Is that what you want?

    Or is it $ \displaystyle \operatorname{Hom}_R ( \_ ,X)$?

    The code for the first one is "\operatorname{Hom} \_ _R ( \_ ,X)"-the underscore must be preceded by a backslash.

    I don't know why an underscore is chosen, though- if "_" is an argument of the 'Hom' function, shouldn't it be a letter?

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    #4 Thread Author
    Quote Originally Posted by jacobi View Post
    $ \displaystyle \operatorname{Hom} \_ _R ( \_ ,X)$
    Is that what you want?

    Or is it $ \displaystyle \operatorname{Hom}_R ( \_ ,X)$?

    The code for the first one is "\operatorname{Hom} \_ _R ( \_ ,X)"-the underscore must be preceded by a backslash.

    I don't know why an underscore is chosen, though- if "_" is an argument of the 'Hom' function, shouldn't it be a letter?



    Thanks I like Serena and Jacobi ...

    Yes, definitely wanted the symbol $ \displaystyle Hom_R( \_ , X)$ ...

    Thanks again for the help ...

    Peter

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