[Maxima] Solve for y when [x=-10, x=10] and d=5
wmporter.omegapar at comcast.net
Fri Jul 23 12:23:52 CDT 2010
Solve for y when [x=-10, x=10] and d=5. x and d are input parameters. x will
first be set a value and then d is assigned a value for e1:
I have the following expression:
(%i1) e1: x^2+d*y*4+d^2*(-4);
(%o1) 4 d y + x - 4 d
(%i2) e2: solve(e1, y);
x - 4 d
(%o2) [y = - ---------]
I know that .
(%i3) e3: subst([y=0, d=5], e1);
(%o3) x - 100
(%i4) e4: solve(e3, x);
(%o4) [x = - 10, x = 10]
(%o3) and (%o4) lines are correct. But I need to assign a value to x for
example x=[-10,10] and d:5 to determine y value. I know that the answer is
y=0. Another example is x=[-50,50] and d:50. I know that the answer is
y=37.5. The problem is I am lost as how to solve this issue.
Can someone help with this issue?
wporter at omegapar.com
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