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Question: The maxmesh option in odeplot

Question:The maxmesh option in odeplot

sarra 270
December 31 2015
0

Dear all;

Thank you for helping me to solve this  question.

I solve an ode, but I have an error when I would like to plot the solution.

uanble to achieve continuous solution with requested accuracy of 0.1e-5 with maximum 128 point mesh (was able to get 0.14e-5), consider increasing `maxmesh` or using larger `abserr`
Error, (in plots/odeplot) input is not a valid dsolve/numeric solution

I try to increase the point mesh or take a large abserr but always I have the same problem.

 

restart:
with(plots):

ode := diff(y(x), x, x) = x*y(x)+sqrt(x);

ics := y(0) = 0, y(1) = 1;
sol:=dsolve({ode,ics}, numeric):
odeplot( sol,[x, y(x)], x=0..1, maxmesh=1000);
Please Wait...