# Draw a surface and its normal vector

Draw the surface and its normal vector. I want to insert a similar image in latex, how should I draw such a schematic? What tools should I use to draw similar diagrams? It may be used frequently in differential geometry and topology.

• Welcome to TeX.SE. Have you visited the TeX.SE website, with all the information, notices, etc.? – Sebastiano Jul 19 at 9:05
• what you try so far? where you stuck in your effort? – Zarko Jul 19 at 9:08
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• @Zarko I tried to draw a surface with Mathematica, but I don't know how to draw the tangent vector and the normal vector on the surface. – King.Max Jul 19 at 9:32
• @King.Max Here there is a best proposal tex.stackexchange.com/questions/234094/… – Sebastiano Jul 19 at 11:48