How to draw vectors with space between them?

[Mald MM5]

Hi there,

I want to do a vector plot with a vector at say every 5th grid point. I have
a grid with many grid points (eg. 200 pnts) and the screen looks so messy
with all the vectors. So I want to plot them at equi-grid points. How do I
achieve this?

Thanks
Mald
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