Desmos integers only

# Desmos integers only Mathematica Stack Exchange is a question and answer site for users of Wolfram Mathematica. It only takes a minute to sign up. The function oscillated because it takes values that are not integers. I have searched around and the above does not work. I'm new to mathematica. How can I change the code to make it only use integer values of x?

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You can use DiscretePlot :. Notice that we do not define integers because Table takes care of that for us. One advantage of the above is that we can examine our data with. The optional arguments are added in any order after the required arguments. We can see the coordinates of a plotted data point by using ListPlot[Tooltip[data]] as the basic command and hovering the mouse pointer over the point whose coordinates we want. Sign up to join this community.

The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. How do I graph only integers using the list function? Ask Question. Asked 3 years ago. Active 3 years ago. Viewed times. Omkar Vaidya Omkar Vaidya 5 5 bronze badges. Perhaps from 3 to ? Active Oldest Votes.

I missed that. I guess it still illustrates use of DiscretePlot. LouisB LouisB 7, 1 1 gold badge 12 12 silver badges 21 21 bronze badges.

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I used the drawing tool, but the y-values of the points are too close to see a difference. If you search this site for "Tooltip" you will see some clever examples of how to use this command. The problem is that it only shows 4 decimal places, and all the points show the same value How can i change this?

The Overflow Bugs vs. Featured on Meta. Responding to the Lavender Letter and commitments moving forward.Monday, October 23, Diophantine Desmos. It may happen that you have a real valued function, but only want to find those points where both the input and output are integers.

Suppose you had a graph of sqrt x and wanted to show which values of x give an integer result for yi. I recently learned how you can find and display integer solutions for certain types of equations in Desmosand thought I would write a post about how to do this. When we care only about the integer solutions of an equation, we refer to it as a Diophantine equation. What we do next is to use some of the functions built into Desmos to create an integer detector function, that we can apply to the outputs of f x.

We'd like to build a function that can tell if a given input is an integer or not, and then use this to find out when we have an integer value for f n. We would like to create an indicator function for integers that behaves like this:. To do this, we can make use of some built in functions in Desmos - the ceiling and floor functions.

The function ceil rounds a decimal value up to the nearest integer, and floor rounds it down to the nearest integer. To get a function that is zero when x is not an integer, we take the floor again:. By composing t and fwe obtain a function tf which tells us when the values of f are integers. Plotting t f x for a range of integer inputs shows us which values of f give integer results. Desmos handles undefined points gracefully - it just will not plot them.

Consequently, if we create a function gwhich is identical to f where f takes on integer solutions, but is undefined when it does not, we can get Desmos to plot exactly the points we want and no others. Posted by dan. Newer Post Older Post Home.This unit introduces the concepts of functions how quantities relate to each otherand characteristics of functions.

Quizlet vocabulary. Notes Annotated Notes. Practice Problems:. Khan exercise: Independent versus dependent variables. IXL: Identify independent and dependent variables. Worksheet 1.

Greatest Integer Function With Limits \u0026 Graphs

Khan video: End behavior of algebraic models. Khan video: Discrete and continuous random variables. Website Resource: Graphing Stories. Curve of forgetting: AVID blog safeshare: video. Khan exercise: End behavior of algebraic models.

Desmos: Function Carnival teacher use only. Desmos Activity: Graphing Stories teacher use only. Khan video: Intervals and interval notation. Khan video: Worked example: domain and range from graph. Khan video: Worked example: determining domain word problem real numbers. Khan video: Worked example: determining domain word problem positive integers.

Khan video: Worked example: determining domain word problem all integers. Practice problems:. IXL: Q. Khan exercise: Inequality from graph on a number line; single inequality. IXL: DD. IXL: FF. Desmos Activity: Domain and Range Introduction uses compound inequalities - teacher use only. Desmos Activity: Introduction to Domain and Range - teacher use only.

Khan exercise: Domain and range from graph uses compound inequalities. Khan exercise: Function domain word problems uses compound inequalities. ExamView Bank purchase.Post a comment. Desmos Activities. Below are a list of custom Desmos activities. They range in grade from They are in chronological order from when they were made so you may just want to search the page with keywords.

Let me know if you have any questions or see any issues. In this activity the idea is that to help students develop tools for fraction subtraction, one way to do that without just telling them the rules is to use a progression of successively more and more complex problems. In this activity, the problems become more and more complex with practice along the way and then finishes with a Challenge Creator so students can create their own fraction subtraction problem.

This is intended to be a mix of investigation, consolidation and practice and likely won't be done in a single period.

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In this investigation, students can get practice using sine law while investigating the nature of the ambiguous case. Once they are done, then students can create their own problems for each other to solve using the Challenge Creator at the end.

Because we ask to write down their solutions, this would be best done with iPads or touchscreen laptops. Below are a list of over 20 Desmos Activities that investigate basic geometric theorems that span grade here in Ontario some of which can be seen below.

Though these are very basic activities with some dynamic features and could be done via paper and pencil, ultimately the power in using them is in exploiting the features of the teacher dashboard to show student work and pace the class. This is a Desmos version of a Websketch I made years ago. In this sketch students explore creating Escher like tessellations by dragging any of the red points to change all of the shapes. So this is bit of an experiment. The idea here is that students would practice by working out the answers to the angles using the Desmos Sketch feature ideally this works best on a touch screen device and then they can check their answer immediately by measuring the angles on the next slide using Desmos geometry.

It doesn't really exploit a lot of Desmos features but still could give you some insight into where students are having difficulties. In this activity students are introduced to the concept of the two dimensional vector equation.

At the end of the activity there are two slides with randomly generated practice problems. This activity assumes students are familiar with coordinate vector notation. This is meant to be a consolidation task to be done after the class has been introduced to histograms and the distinction between continuous and discrete data.Desmos Activities for Middle School. I stopped updating this resource sometime in But you might still find it to be helpful. These activities activities were found at Teacher.

Descriptions are borrowed directly from Teacher. You can search for activities by keyword at Teacher. You might find other activities at the activities the Desmos Bank.

## Desmos Activity: Sieve of Eratosthenes Grade 8 but could work at other grades, too! Transformations gr 8. Geometry - other gr 8. Linear Bundle gr 8. Linear - more!Please help. I only have this problem when restricting domain AND range. How can I fix this? Hi, I'd like to plot a domain indexed by a parameter k that takes values -2,-1,0,1,2all at the sametime. How can I do that without explicitly stating the five domains in separate lines.

Can you limit a polar equation? How can I do that?

### Learn Desmos: Restrictions

Does desmos limit the domain? I would like to plot this function over a larger domain than [0,12pi].

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Ahedman - Polar graphs are automatically set to a domain of [0, 12pi]. It's possible to restrict the domain to a smaller interval but not to make it larger. That is a supremely unfortunate.

### Inequalities

I strongly recommend that you increase both the upper and lower bound in future versions. There are a number of interesting functions I would like to show my students that your program is now useless for. Is there any way for me to set the domain to fulfill those requirements? For example, is there any way I could create a line, and then effectively erase intermittent segments of it by adding multiple domain restrictions using "or"?

To use an "and", you need to use a pair of brackets for each restriction. The fucntion below should give you what you're looking for.

I tried to limit the range r value on a polar equation inequality, but it wouldn't let me. It said polar equations must be linear in r. I don't see why r can't be limited under these conditions, is this just something Desmos doesn't let you do? Can you check my circle, at kirby's legs, there is still some lingering lines after stating the restrictions. How would you make it so that if you split a circle into four, three parts remain and the fourth doesn't?

I tried to limit domain and range. The annoying thing is it worked for about 10 seconds before deciding it didn't like it. Also any ideas on limiting lines to within the bounding circle would be much appreciated I currently have no idea how to add a table onto an equation?

I use Desmos all the time, and I'm having trouble with this. This is what happens when I try to add a table onto an inequality. It doesn't give me the option to, and I still can't figure it out. I need the points on a table to be able to understand this more, but I'm restrained to otherwise. I have an assignment in my algebra class to create a picture on a graph with desmos - I'm trying to make a panda and am having trouble making the ears because I want the circles for the ears to be jutting out from the head rather than connected to it at one point.One of my favorite ideas to use in class is the Sieve of Eratosthenes.

The solution, as it so often is, was Desmos. The activity is very similar to the worksheet I shared above. It steps students through identifying prime numbers, crossing out the composite numbers as they go. But instead of literally crossing out the numbers, students type the list of numbers and Desmos takes care of the crossing. There are some limitations here.

I preferred originally, because it means crossing out the multiples of 11 makes a difference. I did consider using something other than 10 by 10, but the grid is already getting a little cramped at this point. Also, typing in the lists of the multiples gets tedious. If anyone from Desmos is reading this: would it be possible to allow tables in the Activity Builder to automatically follow a pattern, as they do in the calculator?

Note that this image is taken from this graph rather than the activity itself, but I did use the graph to make the activity. 