Desmos Graphing Calculator

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# Description

At Desmos, we imagine a world of universal math literacy and envision a world where math is accessible and enjoyable for all students. We believe the key is learning by doing.

To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free.

Features:

Graphing: Plot polar, cartesian, or parametric graphs. There’s no limit to how many expressions you can graph at one time - and you don’t even need to enter expressions in y= form!

Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph

Tables: Input and plot data, or create an input-output table for any function

Statistics: Find best-fit lines, parabolas, and more.

Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect window.

Points of Interest: Touch a curve to show maximums, minimums, and points of intersection. Tap the gray points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger.

Scientific Calculator: Just type in any equation you want to solve and Desmos will show you the answer. It can handle square roots, logs, absolute value, and more.

Inequalities: Plot cartesian and polar inequalities.

Offline: No internet access required.

Visit www.desmos.com to learn more and to see the free online version of our calculator.

To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free.

Features:

Graphing: Plot polar, cartesian, or parametric graphs. There’s no limit to how many expressions you can graph at one time - and you don’t even need to enter expressions in y= form!

Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph

Tables: Input and plot data, or create an input-output table for any function

Statistics: Find best-fit lines, parabolas, and more.

Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect window.

Points of Interest: Touch a curve to show maximums, minimums, and points of intersection. Tap the gray points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger.

Scientific Calculator: Just type in any equation you want to solve and Desmos will show you the answer. It can handle square roots, logs, absolute value, and more.

Inequalities: Plot cartesian and polar inequalities.

Offline: No internet access required.

Visit www.desmos.com to learn more and to see the free online version of our calculator.

My review

Review from

# Reviews

4.6

15,253 total

5 11,623

4 2,229

3 597

2 232

1 572

Nathaniel

The flexability is brilliant - more than I expected was possible. It should deserve 5 stars for that. However, the app doesn't "feel" nice to use and it needs some interface optimisation help. This has a huge effect on my overall rating because at some points, the app is almost unusable. Maybe that is just because I am using it on a phone and it is designed for a tablet?

Nicholas Standen

Brilliant app, easily best one out there. Would like to make a couple of suggestions though, on Android 6.01 & portrait mode, even if you only have one equation entered, the menu thing where it is displayed takes up half the screen or is gone completely, would like a way to move that to where I wish. The other thing is perhaps a way to lock the axis to scale, I keep accidentally widening an axis when I try to zoom. Small irritants on an otherwise perfect system.

Peter Marinos

The best graphing app for phones! Can even be used as a calculator, and still manages to be better at that then most calculator apps. It's very easy to use and to find little typing errors, I actually prefer using this to to graph than my $200 calculator.

Cal Campbell

I love this app, it's helped me visualize problems, explore the relationship between relations and create (mathematically described) whimsical drawings. I can honestly say that I've spent more time on this app than any other.

amrit kunwar

I loved this app. This is the best graphing app I have ever found in play store . It has lot more features which are absolutely free as compared to other. The only thing it lacks is scientific calculator. Hope you will add this in next update.

Farzand Ali

The best graphing calculator I have ever used. So easy to use and graphs are very simple but good looking. But I am unable to draw 3d graphs. Can anyone help me please?

User reviews

Best Math App :) Hands down, it's the best math app available. I would like to suggest though that the developers would develop the app such that it would be able to solve more complicated equations like x/(x+4)=5. :)

Brilliant but takes up internal space I love Desmos, it's great, but like so many apps it installs to my internal memory, where space is running very short. Please consider installing to SD card instead, so that scarce internal space can be reserved for apps that really need it.

It's a free graphing calculator with some other scientific functions as well. Not quite a TI-84, but gets the job done wonderfully.

I was doing exponential functions and it kept giving me this stupid error. And its wasn't me who typed in wrong if that is what your thinking

Graphing Calculator of Choice You could hunt and peck on a physical calculator. You could use another android app. However, this my friend, will provide the smothest expirence you'll ever know as almost everything can be entered by keyboard. Also, If you lose your device for some reason, the graphing calculator is hosted on a website.

Adding Indefinite Integrals and Differential Equarions This is an excellent graphing calculator with greater depth than many others. I was delighted to see in a recent update that definite integrals can be calculated. However, I noticed that there is no way to graph indefinite integrals since the calculator does not allow a variable limit of integration. When will, when given an initial condition C, indefinite integrals be able to be graphed? If this becomes possible, could graphing particular solutions of differential equations also become possible?

It's really a handy and useful app. I was searching for an efficient graphing calculator. This 3 MB offline app has simply replaced a costly afordsome calculator. Thanks to the developer.

Lag Somehow after updating, moving the variables doesn't have an immediate effect on the graph. Hope it can be fixed :)

I can not change the bounds on adjustable values. My keyboard goes away every time I try to type.i.e. The adjustable Bar for 'a' has to start at 2 and go to 8. I can't do that.

Selecting equations on phone The app seems to work on my computer but when I go on my phone it doesn't let me select my equations. EDIT: Works great now thanks!

Desmos Inc December 27, 2016

Can you try updating the app to version 2.4.2.1? We just fixed a bug that could have been causing the trouble you saw. I don't have a graphing calculator in school and this app comes in handy. Please keep up the good work!

The Best app!!!! I used it for my maths assignments and it would generate a graph for any unknown curve equation i type in ......whatsoever it maybe...

I love this! This is quite a robust, full-bodied calculator! Its ability to correctly graph multiple equations at the same time and find points of intersection, etc., makes it a very useful tool for quickly outlining how these equations relate to each other. This is very good also for comparing equations and comparing an equation with an approximation equation. Almost all the equations I can think of can be graphed here. This is also the best linear regression calculator I have seen. Input can be saved if you just log in first. The online PDF manual is also a plus! Thanks! :-)

It's a big help! This app is amazing! I have trouble when it comes to Graphing so, thus app is a big help.

I've never seen a better game that's based off of a movie because they r usually bad.

Where is the colon in the keyboard (:)? I want to define unit step function like below u(x)={x<0:0,x>0:1} But I m not finding that colon(:) symbol in ur keyboard I m not able to type f'(x) why??? Please guide me how to type that ty🙂 Also include cut copy paste option....that will be a great help

Amazing For the people who love mathematics,this is a must have because you can literally visualise every funxtion,curve be it polynomial exponential trigono.etric logarithmic anything!!!!!!!!!!

It's an awesome tool but I'm not sure how to calculate bearing angles with it. I'm a surveyor and would love to be able to use this tool in the field to make sure my measurements are accurate. I see I can do cosine of a decimal but not where I input a cosine of an angle like 45 deg 22min 10sec

Very nice built app, very useful and easy to use. The only thing that is missing is the 3d graphing option.

By far the best graphing calculator app I've tried. Very flexible and powerful, with an accessible and nice looking interface. Some unique features like the custom variable sliders make it even better.

The only graphing calculator which I like much more than that of Mathlab's Graphing Calculator but please add more functions please like that of MATLAB so that DESMOS can become the best. It is better than Geogebra's Graphing Calculator too.

Not only very useful but also extremely well designed, both the GUI and the functionality. I'm highly impressed with this app.

Top of the line app! This app will allow anyone needing a graphing calculator to have complete access and graph saves instantly over multiple devices! FOR FREE!!!!

Can basically graph anything 2D. A must have for any maths/physics A Level or degree student

Complex number support It would be helpful if it can draw functions which include complex number 'i' e.g. 2exp(2ix)

Only one problem. Every time I opened the app it smelled like someone farted.

So much better than just a graphing calculator, it has many functions that I need for late high school math, that no other calculators I could find have.

It's amazing on PC but on my device, sliders and moving around my equations doesn't work. I have checked to see if it is my phone but it isn't. Sorry thanks for helping

How to add a point with determined coordinates, example I want to add a point with variable A and the location is (0,1) Thank you

Acrually, from one last week, slider isn't working properly...pls help me fix

Nice and powerful, fairly intuitive. Power user features are out of sight unless looked for, in a good way.

It's so easy to use and there are so many functions that I can do. It's helped so much and has allowed me to just use phone instead of having to buy a graphing calculator. It's perfect.

Best graph plotting app I've ever seen. Kudos to you guys for making such an useful and easy to use app which covers a wide range of input functions.

Good enough. But how do i calculate area under a curve, when I have points for the curve data? It would be helpful if this function was introduced.

Review deleted

# What's New

Now with:

• Full accessibility and external keyboard support. Learn more at www.desmos.com/accessibility.

• More calculus! Type f'(x) to get into the derivers seat.

• 75% slimmer file size.

• Dividing by zero is now "undefined" instead of “infinity," to the delight of math teachers and the chagrin of floating-point arithmetic lovers.

• Fix bug with turning on and off expressions on some newer devices.

# Additional information

Updated

December 26, 2016

Installs

1,000,000 - 5,000,000

Current Version

2.4.2.1

Requires Android

5.0 and up

Permissions

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Desmos Inc