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Shrink vector arrow heads for very short vectors drawn in the GraphTool. - #1570

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drgrice1 wants to merge 1 commit into
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drgrice1:graphtool-small-vectors
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drgrice1 wants to merge 1 commit into
openwebwork:developfrom
drgrice1:graphtool-small-vectors

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JSXGraph intentionally hides an arrow head when the segment is shorter than the head. So this makes the arrow size smaller when a vector is short so that the arrow head is still shown.

This is a (perhaps not so great) fix for issue #1566. Unfortunately, I don't think there really is an ideal fix for this. I recommend arranging things so that vectors aren't that short in general.

JSXGraph intentionally hides an arrow head when the segment is shorter
than the head. So this makes the arrow size smaller when a vector is
short so that the arrow head is still shown.

This is a (perhaps not so great) fix for issue openwebwork#1566.  Unfortunately, I
don't think there really is an ideal fix for this.  I recommend
arranging things so that vectors aren't that short in general.

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