I haven't been able to make this work; I want no arrowheads, but black vectors (segments). If I use
VectorPlot[{x, y}, {x, -1, 1}, {y, -1, 1},
VectorStyle -> {{AbsoluteThickness[3], Arrowheads[0], Black}}]
I get the arrowheads.
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$\begingroup$ What version are you using? I get no arrowheads in versions 9 and 11: i.stack.imgur.com/RsLNe.png $\endgroup$– Jason B.Dec 22, 2016 at 16:11
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$\begingroup$ @JasonB I am using Mma 10! $\endgroup$– usumdelphiniDec 22, 2016 at 16:14
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$\begingroup$ If you quit the kernel and run your code, do you still get the arrowheads? If so, post the graphics output here also. I just tried this on 10.3.1 and it gives the same result. $\endgroup$– Jason B.Dec 22, 2016 at 16:16
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$\begingroup$ @JasonB i.stack.imgur.com/Au5fo.png $\endgroup$– usumdelphiniDec 22, 2016 at 17:46
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$\begingroup$ I get no arrowheads using 10.1. $\endgroup$– David G. StorkDec 22, 2016 at 18:13
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1 Answer
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In "10.0 for Mac OS X x86 (64-bit) (June 29, 2014)" I get the same result as the OP. In version 10.1 I get the correct result, so it appears the issue was fixed by then.
To remove the arrowheads in version 10.0, you can use
VectorPlot[{x, y}, {x, -1, 1}, {y, -1, 1},
VectorStyle -> {{AbsoluteThickness[3], Black}}
] /. Arrow -> Line
answered Dec 22, 2016 at 18:32