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Here a example of the integral sign : $\int _C$

How to get this notion in MMA ?

I tried this input, but it was not possible.

EDIT

Looking at the CountourIntegral command and the variation of it. Esc cint Esc, gives the countour integral symbol

janhardo
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  • Make "Esc+intt+Esc". Does it help? – Alexei Boulbitch Apr 05 '22 at 20:24
  • Thanks, this is not working : "Esc+intt+Esc" , nothing happens in the notebook ? Working is "Esc+int+Esc", I think that the notation is possible as it seems , but the actual calculated integral is without the C notATION in MMA. – janhardo Apr 05 '22 at 21:25
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    Do you just need the notation or do you want to calculate the integral over a contour C? For the notation alone, I'm pretty sure "Esc+intt+Esc" should work, and if it's not working then open Palletes -> Writing Assistant, and in the "Typesetting" section there are integrals with limits. In the upper limit, highlight it and press Backspace - this will remove it. In the lower limit you can place "C". – mszynisz Apr 05 '22 at 22:07
  • See https://reference.wolfram.com/language/tutorial/TwoDimensionalExpressionInput.html#453224886 or use the inline TeX input. – Michael E2 Apr 06 '22 at 01:28
  • @mszynisz , thanks , i must look further into this. Notation and for calculation. – janhardo Apr 06 '22 at 08:08
  • @Michael E2, thanks , must figure out this further. – janhardo Apr 06 '22 at 08:12
  • @janhardo Perhaps related is this: https://mathematica.stackexchange.com/questions/36961/paths-integrals-in-the-complex-plane In here they show how to integrate over a polygonal path in the complex plane: Integrate[(1 - E^z + z)/(z^3 (z - 1)^2), {z, 2 - 2 I, 2 + 2 I, -2 + 2 I, -2 - 2 I, 2 - 2 I}] // FullSimplify. – mszynisz Apr 06 '22 at 13:11
  • @ mszynisz, it shows that the Integrate symbol has ( the S ) has no attached sign C (contour) to it. – janhardo Apr 06 '22 at 14:52
  • Esc cint Esc.... gives the countour integral – janhardo Apr 24 '22 at 10:04

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