[{WikipediaArticle oldid='255801372'}]



[{VerifyArticle user='eertl' template='Standard' date='17. November 2014' page-date='2014' comment='Überprüft, nach Jaros, A., Nussbaumer, A., Nussbaumer, P., Physik compact. Basiswissen 7RG' funder='21' }]
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!!!License Information of Images on page
||Image Description||Credit||Artist||License Name||File
| A R2 → R function as a scalar field and its gradient represented as a vectorial field| Eigenes Werk| MartinoK| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Gradient.jpg
| The magnetic field of a bar magnet revealed by iron filings on paper.  A sheet of paper is laid on top of a bar magnet and iron filings are sprinkled on it.  The needle shaped filings align with their long axis parallel to the magnetic field.  They clump together in long strings, showing the direction of the magnetic field lines at each point.| Newton Henry Black, Harvey N. Davis (1913) Practical Physics , The MacMillan Co., USA, p. 242, fig. 200| Newton Henry Black| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Magnet0873.png
| The vector field represented by f = 2 x x ^ + y 2 y ^ + z 2 z ^ \displaystyle \mathbf f =2x\hat \mathbf x +y^2\hat \mathbf y +z^2\hat \mathbf z  plotted over the unit sphere. Vectors have been uniformly scaled down to 0.2 times their original length for aesthetics. Originally created as an image for the example problem on the divergence theorem page to replace the less relevant image here .| Eigenes Werk| Glosser.ca| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Vector Field on a Sphere.png
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