Notice in this example we used a different way to get the domain for x,y using linspace as opposed to the above example. Email Required, but never shown. Create a “grid” in the xy-plane for the domain using the command meshgrid Calculate z for the surface, using component-wise computations Plot the surface. Defining the domain here is even trickier than for 2D. Plotting 3D Surfaces L. Your example only really defines a curve, I’m not sure how you go from that to a surface.

This page will not show all of them; it will show the way that is the most customizable and can be easily extended to more complicated settings like parametric equations, 3D, etc. Email Required, but never shown. Sign up using Facebook. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Again, you may need to adjust how many points are used to make the graph not too jagged if number too low or not hang the computer number too high. This has a lot of stuff; read the contents carefully!

The command linspace a,b,N gives N points between a and b so linespace 0.

Are you looking to plot them in 3D? This example demonstrates how to plot more than one graph on the same figure. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Sign up using Facebook. Sign up using Email and Password. This page will not show all of frremat it will show the way that is the most customizable and can be easily extended to more complicated settings like parametric equations, 3D, etc.

Hm, as far as i can tell, it should give you an error since Z has to be a matrix and you’ve only defined a vector. Plkt main commands are mesh x,y,z and surf z,y,z.

This is how I would plot a surface: Your example only really defines a curve, I’m not sure how you go from that to a surface.

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See if that does what you want. Again, you may need to adjust how many points are used to make the graph not too jagged if number too low or not hang the computer number too high. Establish the domain by creating vectors for x and y using linspaceetc. This example demonstrates a 3f to have different x and y ranges. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Plotting 3D Surfaces L. I do not explain every command or show everything. You don’t want too few freemay in the “grid” or it will appear jagged, but too many and the computer will slow down or even hang! Use Mozilla Firefox or Safari instead to view these pages. Post llot a guest Name.

Plotting 3D Surfaces

Notice in this example we used a different way to get the domain for x,y using linspace as opposed to the above example. Stack Overflow works best with JavaScript enabled. It sounds like you need to start with plot3as you’re just describing a set of points in 3D, rather than points on pllot mesh or surface.

James Archer James Archer 2 4 Is my method wrong? Create a “grid” in the xy-plane for the domain using the command meshgrid Calculate z for the surface, using component-wise computations Plot the surface. As I am new to it, I was just trying out. Sign up or log in Sign up using Google. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy frsemat, and that your continued use plo the website is subject to these d3.

There are several ways to produce graphs of functions. Sometimes I use axis limets to make the plot look nicer eliminates the unneeded white area’s ; for this set of data I could use xlim [6 11] and ylim [2 6].

This example shows how to graph a horizontal plane.

FreeMat – CONTOUR3 3D Contour Plot Function

I would like to ask about 3d surface plotting. This has a lot of stuff; read the contents carefully! It is up to you to experiment and look up these commands to better understand them. This is also a learn-by-example page. Defining the domain here is even trickier than for 2D. As such, i tried.

Basically, I have 3 parameters, x, y ,z which I have the values from experimental datas and I would like to plot them out.

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