Axes and d Grid: U Uncheck thesee boxes to hidde axis labels, grid lines, annd the x- and y-axess.
Usee the menu to:: Restore Defaults: D T These buttons (1) bring the center of the graph back too the orrigin, (2) reseet the axes scaales so units on o both axes are a equal (eensuring that graphs are noot distorted), and a (3) reset the t domain annd range so sccales on both axes go from m –10 to 10. To T show the grraph, check thhe box again.Ĭhangiing the Setttings To custom mize graph setttings, tap thee settings buttton at the low wer right of thee screen. Hiding/Sh howing Grap phs To hide a graph, uncheeck the box too the left of thhe function. Zooming To zoom in, “double-taap” the point you want to zoom z in on orr use the buttoon at the bottoom of the screen. Tap insidee the color wh heel to choose a color for the t graph. Trace PointĬhangingg the Color of o a Graph To changee the color off a graph, highhlight the function box. The cursor “jumps” to the intersection point, which looks like a “bull’s-eye.” The coordinates of the point are displayed. To find the intersection of two graphs, tap close to the intersection point. Tap any other location on the graph to see the coordinates of another point. The coordinates of the selected point appear. Investigating Graphs Tracing Along a Graph/Finding an Intersection Point To trace a graph, tap it. Deleting a Function To delete a function, tap the close button to the upper right of the function.
Then use the Desmos keypad to update the function’s box.
(The same is true for superscripts and subscripts entered via the keypad.) Editing Functions To edit a function, tap inside its box. The absolute value function that behave the same way the parentheses do.Įxponents, and roots such as, behave similarly, although parentheses are not visible. Parentheses also appear for trigonometric functions such as Any characters you enter are inserted inside the parentheses until you tap-or use the arrow keys to reposition the cursor-outside the parentheses. Parentheses, Functions, and Exponents When you press the left parentheses key on the keypad, a pair of parentheses appears in the function. To edit functions, use the arrow keys at the lower left of the keypad to move the cursor and the delete key Special functions, including trigonometric, logarithmic, square root, cube root, and absolute value functions. Variables (all letters on the keypad are treated as variables except e). Using the Keypad Use the keypad to enter: In either case, the keypad appears at the lower left of the screen. To enter a new function outside of a function family, tap “start over,” then tap “Start Fresh!” at the top of the function list, as shown at right. Entering Functions To enter a new function while within a function family, go to the bottom of the list and tap “Click to add equation” as shown at left below. The dark blue graph immediately updates to reflect the change in the parameter’s value. Tap a point along the slider line to change the value. Using Sliders To change the value of a parameter, use the slider to the lower right of the equation showing the current parameter value. This form of the quadratic function is Sliders, used to change the parameters, are shown below the more general form of the function. Desmos also includes a more general form of the function, with letters indicating parameters that can. For instance, the parent quadratic function is. Each function family has a parent (basic) form of the function, which is graphed by default in light blue. Graphing Functions Function Families For On Core, the Desmos calculator provides several function families, shown in the list at the left side of the screen. It enables you to enter function types, variables, numbers, and mathematical symbols.
The keypad (not shown below) appears at the lower left when you begin entering a function. The settings menu allows you to customize the grid scale, choose radian or degree measure, and more. Undo/redo buttons allow you to step back/forward as desired. Details are listed at the end of this document.įunctions are graphed and updated in real time on the right side of the screen.Ĭontrol buttons are at the bottom of the screen. The left side of the screen is for entering, editing, and manipulating functions. The Desmos calculator can display multiple graphs in different colors simultaneously, trace along graphs, locate points of intersection, and more.ĭesmos in On Core The Desmos Screen: The version of Desmos used in the On Core whiteboard lessons is shown below. The effects of the changes are seen in real time. Users can enter functions directly, or use sliders to change parameters (key values) in a function. The Desmos Graphing Calculator The Desmos online calculator allows users to graph mathematical functions/equations and to manipulate the graphs on a computer, tablet, or whiteboard.