Plotting Functions in Mathematica: A Simple Guide

[clanijos]

Could someone tell me how I would go about plotting a function in Mathematica over say, x^2? or sqrt(x)?

Thanks!

 

[Bill Simpson]

Could someone tell me how I would go about plotting a function in Mathematica over say, x^2? or sqrt(x)?

Perhaps more appropriate posted here:

https://www.physicsforums.com/forumdisplay.php?f=189

To do this use

Plot[x^2,{x,-3,3}]

which is documented here

http://reference.wolfram.com/mathematica/ref/Plot.html

or when you are running the software hit <f1> and when the help browser pops up type in Plot or any other likely keyword you want documentation on.

Mathematica is fanatic about exact use of {} versus [] versus (), := versus = versus == versus even === and correct capitalization. Make an error in anyone of those and you will get possibly incomprehensible error messages.

 

[clanijos]

Thanks!

Edit: Gah, replied before I really looked over what you said! Yeah, I know how I should go about plotting a function like that. What I am looking for is something similar to LogPlot, but where the scale of the x-axis can be changed to another function.

 

[NascentOxygen]

What I am looking for is something similar to LogPlot, but where the scale of the x-axis can be changed to another function.

You want to compress the scale on the x-axis, but not logarithmically? It's difficult to see why you might want to do that. I think you would have to do the compression yourself and then re-label the axis after the computer has done the plotting.

Exactly what are you wanting to plot?

 

[alphy]

Sure, I'd be happy to help! To plot a function in Mathematica, you can use the "Plot" command. For example, to plot the function x^2 over a range of x values, you would type "Plot[x^2, {x, -5, 5}]" into the Mathematica notebook. This will create a graph of the function with x values ranging from -5 to 5.

To plot the function sqrt(x), you would follow the same process but replace "x^2" with "Sqrt[x]". You can also adjust the range of x values to plot by changing the numbers in the curly brackets after the function.

Additionally, you can add options to the "Plot" command to customize your graph, such as adding labels or changing the color and style of the plot. The Mathematica documentation has more information on the different options available for plotting functions.

I hope this helps and happy plotting!