Delta Dirac 3d Dimensional Analysis

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viniterranova
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1. I ´m trying to do the dimensional analysis of the Delta Dirac in 3 Dimensions.

http://[url=http://postimg.org/image/oif09fcd5/][ATTACH=full]199945[/ATTACH] [B]3. This is my atempt
[PLAIN]http://[url=http://postimg.org/image/4qavbtv4p/][ATTACH=full]199946[/ATTACH] [/B]
 
Attachments
  • Handwritten equation: (r-hat / r^2) = 4 pi delta^3 (, with the right-hand side cut off at the image edge.
    url].jpg
    2.8 KB · Views: 206
  • Handwritten derivation on lined paper: a delta-function expression with a dimension check, including a line labelled dimensional analysis and a fraction with units written beneath it.
    url].jpg
    3.3 KB · Views: 199
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The images you posted aren't showing up on my browser (chromium) - is anyone else having this problem too? You may want to re-post a different way.
 
Equation: divergence of (r-hat over r squared) equals 4 pi times delta cubed of r, the three-dimensional Dirac delta function.
This is the Delta Dirac Functin in 3D.

This is my attempt.

Handwritten derivation on lined notebook paper showing a Dirac delta function in three dimensions, with equations involving delta(r) and a coordinate substitution, partly legible at this resolution.
 
The image of your attempt is really really tiny. You might consider reading about how to post equations here using LaTeX. It's a little bit of effort up front, but definitely worth it.

You can read about it here: https://www.physicsforums.com/help/latexhelp/

Oh, and if the itex thing doesn't seem to work, try the double hash mark thing.