How to specify an arbitrary slope with the vector command?

i want to draw a vector with the vector command, but it seems like that the slope must be specified in integers less than some limit, thus commands like

\put(0,10){\vector(8,7){200}}

will failed to compile, but this works:

\put(0,10){\vector(1,0){200}}

so how can i specify arbitrary slope, is there a way to specify two endpoints rather than specifying the slope

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2 Answers

This specific limitation is removed by the pict2e package (load the package and it should "just work"). However, for programmatic drawing in LaTeX these days I'd suggest looking into PGF/Tikz.

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According to http://www.giss.nasa.gov/tools/latex/ltx-341.html, the \vector command takes only integers -5 < x, y < 5.

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