MATHEMATICA5 - How do I plot this?

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Discussion Overview

The discussion revolves around plotting the integral of the function \(\frac{1}{x^{1.3}}\) using Mathematica, specifically focusing on visualizing the area under the curve and approximations with left and right endpoints. Participants explore the nature of the integral and its convergence properties.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant requests assistance in plotting the integral and approximations in Mathematica.
  • Another participant expresses confusion about the request, noting that the integral results in a number rather than a plot, and suggests that the integrand might be what is intended to be plotted.
  • A later reply clarifies that the participant is interested in plotting the area under the curve of \(\frac{1}{x^{1.3}}\).
  • Another participant mentions that the integral does not converge over the specified interval and provides an instruction for integrating the function, along with a result that appears to be a misunderstanding of the integral's behavior.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the nature of the integral and its convergence, with differing interpretations of the original request and the mathematical properties of the function.

Contextual Notes

There are limitations regarding the understanding of convergence for the integral in question, and the discussion reflects uncertainty about the correct approach to plotting in Mathematica.

DivGradCurl
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[tex]\int _1 ^{\infty} \frac{1}{x^{1.3}}dx[/tex]​

I need to plot this integral and approximations with left and right endpoints using Mathematica. I've tried a google search to get some instructions... but nothing. Does anyone know how to do this?

Thank you.
 
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Mathematica contains very detailed help internally.

I'm a bit confused what you mean by plotting this integral though -- the result of this integral is just a number. Do you mean to plot the integrand?

- Warren
 
Oh, I mean the area under the graph of [tex]\frac{1}{x^{1.3}}[/tex]. Well, thanks for the tip.
 
It says that Integral of 1/x^1.3 does not converge in that interval.

The instruction given was Integrate[1/x^1.3, {x, 0, infinity}]

And, the result given is:[tex]- \frac{3.33333}{x^{0.3}}[/tex]
 

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