14-7-9

Differential Equation Graph Window Operations

uTo graph the solution curves by dropping an Nth-order differential equation and matrix into the Differential Equation Graph window

Example: To drag the Nth-order differential equation y” + y’ = exp(x) and then the initial condition matrix [[0, 1, 0][0, 2, 0]] from the eActivity application window to the Differential Equation Graph window, and graph the applicable solution curves

(1)On the application menu, tap A.

•This starts up the eActivity application.

(2)On the eActivity application window, input the following expression and matrix. y” + y’ = exp(x)

[[0,1,0][0,2,0]]

(3)From the eActivity application menu, tap [Insert], [Strip], and then [DiffEqGraph].

•This inserts a Differential Equation Graph data strip, and displays the Differential Equation Graph window in the lower half of the screen.

(4) Drag the stylus across “y” + y’ = exp(x)” on the eActivity application window to select it.

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