Differential Equations Problem
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02-14-2017, 06:07 PM
Post: #1
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Differential Equations Problem
I received an email with the question:
------------------------------------------------------ I am trying to solve the simplest first order ode I could think of: dy/dx - 4y = 0 for y(0) = 1 the solution should be y(x) = y(0) e^4x I tried plotode(4*y, [y], [1]) but I just get the error message "bad argument type". I thought perhaps I need to give it the independent variable, so I tried plotode(4*y, [x,y], [0,10) which now runs, but it makes a vertical line straight up. ----------------------------------------------------------------- I have tried to use both odesolve and desolve with no success. odesolve(4*y, [x,y]) returns the same odesolve(4*y, [x,y], [0,1]) returns Bad Argument Type desolve(4*y, [x,y], [0,1]) returns [[ ]] desolve(y' - 4*y = 0, [x,y], [0,1]) returns [[ ]] Any help? |
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Messages In This Thread |
Differential Equations Problem - Eddie W. Shore - 02-14-2017 06:07 PM
RE: Differential Equations Problem - Han - 02-14-2017, 06:37 PM
RE: Differential Equations Problem - Eddie W. Shore - 02-15-2017, 02:27 PM
RE: Differential Equations Problem - parisse - 02-14-2017, 07:52 PM
RE: Differential Equations Problem - Jan_D - 02-16-2017, 05:13 PM
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