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If you populate the upper and lower bound, Demos will output the summation answer. You can also put a parameter for the upper and/or lower limits:
To start, enter the function you'd like to graph (pane 2) and the limits of integration a and b (panes 4 and 6). Then, choose either a left-hand, right-hand, or midpoint Riemann sum (pane 8). Finally, choose the number of rectangles to use to calculate the Riemann sum (pane 10).
0:37 6:16 Suggested clip Calculating a Definite Integral Using Riemann Sums — Part 1 YouTubeStart of suggested client of suggested clip Calculating a Definite Integral Using Riemann Sums — Part 1
You can find the integral on the Demos keyboard by clicking on FUNCTIONS and then MISC. Or, as a shortcut, try typing int directly into the expression line. You can graph a definite integral by filling in the upper bound, lower bound, and integral. Don't forget to include DX if integrating with respect to x.
3:57 6:39 Suggested clip Worked example: finding a Riemann sum using a table | AP YouTubeStart of suggested client of suggested clip Worked example: finding a Riemann sum using a table | AP
To limit the domain or range (x or y values of a graph), you can add the restriction to the end of your equation in curly brackets {}.
There are multiple ways to connect points in a line depending on the style and substance you're looking for. When creating a table in Demos, points can be connected by clicking and long-holding the icon next to the dependent column header. Choose from two different styles.
3:41 6:28 Suggested clip How to find Interquartile range (IQR) Lower Quartile (Q1 YouTubeStart of suggested client of suggested clip How to find Interquartile range (IQR) Lower Quartile (Q1

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