Desmos Walkthrough

Changing the View

To change what you see in your window, click on the wrench in the top right corner.  You should pull up a window that looks like the image to the right.

• You can add a label to the x- or y-axis by putting words where it says "Add a label".

• You can change the distance the axis shows by changing the points on the section below and above the given axis.  For example, if you want to make the x-axis go from -20 to 20, you would type "-20 < x < 20" instead of the "-10 < x < 10" that you see now.  The same goes for the y-axis.

  • You can also do this by placing both of your fingers on the axis you want to change and either squeezing in or out (this will zoom in or out on the axis)

• To change the scale of the axis, you can change the step size (this will force the graph to go by the desired number).  For example, if you want the graph to go up by 2's on the x-axis, change the step size to 2 (it should read "Step: 2").

Modifying Graph Visuals

To change what your graph looks like, click the "settings wheel" at the top right corner of the equations bar.

• You can change the color, line style, thickness, and opacity of the curve on the graph by clicking on the circle to the left of the equation you want to modify.

• You can copy an equation by clicking on the "copy" icon (it looks like two pieces of paper) of the equation you would like to copy.

• You can convert an equation to a table by clicking on the "table" icon of the equation you would like to see as a table.

Creating Tables

There are two ways to create a table in Desmos:

• First, you can click the "+" icon at the top left and click "table".

• Second, you can convert an equation to a table by clicking on the"settings wheel" at the top right corner of the equations bar and then clicking the "table" icon of the equation you would like to see as a table.

Summary Statistics Functions

To find the summary statistics information, go to "Functions" on the right side of the keyboard and go to the "Stats" section.  We can do this with a list of information, but usually we create a table and put all the data under whichever column you prefer.

The list below is organized as- title: formatting with the result in the sub-bullet.

• Total: total(column)

  • Calculates the sum of the column.

• Length: length(column)

  • Calculates the number of data points in the column.

• Mean: mean(column)

  • Calculates the mathematical average of the column.

• Median: median(column)

  • Calculates the median of the column.

• Min: min(column)

  • Finds the minimum value in the column.

• Max: max(column)

  • Finds the maximum value in the column.

• Quartile: quartile(column, number)

  • Finds the quartile given by number in the column.  For example, if you type quartile(x1, 1) it will find the first quartile of column x1.

  • Value must be a number between 0 and 4 (because quartiles).

• Stats: stats(column)

  • Calculates the 5-number summary for the column.

Graphing Box Plots, Dot Plots, and Histograms

To find the graphing information, go to "Functions" on the right side of the keyboard and go to the "Dist" section.  We can do this with a list of information, but usually we create a table and put all the data under whichever column you prefer.

The list below is organized as- title: formatting with the result in the sub-bullet.

• Histogram: histogram(column, bin width)

  • Creates a histogram using the column with the chosen bin width.

  • Once you have created the histogram, you can also choose whether you would like to left/center align your data (we generally choose left-aligned) and whether you would like to do counts/relative/density (we generally do counts).

• Dot Plot: dotplot(column, bin width)

  • Creates a dot plot using the column with the chosen bin width (bin width is generally 1 for dot plots).

  • Once you have created the dot plot, you can also choose whether you would like to do exact/binned (we generally do exact) and center/left alignment (we generally do left-aligned).

• Box Plot: boxplot(column)

  • Creates a box plot using the column.

  • Once you have created the box plot, you can choose the offset (how far off the axis it is), the height (how tall the box plot is), and whether you would like to include outliers in the whiskers (box checked) or have them shown as dots (box unchecked).