Math 306B                                             Math Lab #4
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Problem #1:

(a) - [2 points] Use the Maple command DEplot to construct the slope field of the ordinary differential equation y' = (1- t2 )/(1+ y2 ) on the rectangle t = -1..2, y = -3..3.

(b) -[3 points] Use the Maple command DEplot to plot the solutions of the given o.d.e.

that satisfy the following initial conditions:

y(0) = -1, y(0) = -.5, y(0) = 0, y(0) = .5, y(0) =1 .

(c) - [3 points] Use the Maple command implicitplot to plot the isoclines of the given o.d.e. along which the slope of any solution is c for the following values: .2, .4, .6, .8. Isoclines are curves of constant slope in the t-y plane. If y' = f(t, y)  then the curve of constant slope c is given by the equation f(t, y) = c.

(d) - [2 points] Use the Maple command display to combine the results of (a), (b) and (c).

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