# Thread: Latex code for the functor Hom_R( _ , X)

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.

Peter

2.

3. Originally Posted by Peter
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.

Peter
Hi Peter,

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

4. $\displaystyle \operatorname{Hom} \_ _R ( \_ ,X)$
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?

Originally Posted by jacobi
$\displaystyle \operatorname{Hom} \_ _R ( \_ ,X)$
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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