2 types of mathematical gradients: circular and linear one, both with arrows. The blue arrows direct from white to black.
I made it with Inkscape as a replacement for image File:Grad1.jpg
The original description page was here. All following user names refer to en.wikipedia.
English: gradient - 2 examples
Deutsch: Im linken Bild kann man sich die hintergründige Grauschattierung als Draufsicht auf einen geraden Kreiskegel vorstellen. Die vordergründigen blauen Pfeile geben die Steigung am jeweiligen Ort an.
Im rechten Bild möge man sich einen Abhang vorstellen.
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ምንጭ
Own work
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see file history
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