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Texas Instruments TI-84 Plus - ∫F(X)DX

Texas Instruments TI-84 Plus
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Chapter 3: Function Graphing 131
3. Press | or ~ (or enter a value) to select the X value at which to calculate the
derivative, and then press Í.
The cursor is on the solution and the numerical derivative is displayed.
To move to the same x-value for other selected functions, press } or . To restore the
free-moving cursor, press | or ~.
f(x)dx
f(x)dxf(x)dx
f(x)dx
f(x)dx (numerical integral) finds the numerical integral of a function in a specified
interval. It uses the
fnInt( function, with a tolerance of H=1âL3.
To find the numerical integral of a function, follow these steps.
1. Select
7:f(x)dx from the CALCULATE menu. The current graph is displayed with
Lower Limit? in the bottom-left corner.
2. Press } or to move the cursor to the function for which you want to calculate the
integral.

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