Dear all

I compute the integral of continuous function but maple return a complexe number. 

continuous_function.mw

A continuous function defined on a closed interval its integral is a number, why maple in my case return a complex number

thank your for your help 

Dear all

When I compute 
int( sin(log(x)),x=0..2) 
I obtain an exact value of the integral 
but one I compute 
int( sin(log(x+1)),x=-1..1) 
I obtain undefined integral

The two integrals are the same, using the change of variable z=x+1

Many thinks

Dear all

I have the following proc I, I need a help so that the proc run without error. 

I get Error, invalid =

Code_eigenvalues_eigenvectors.mw

Thank you for any help 

Dear all

I run a code But I obtained the following error 

Error, (in PW) cannot determine if this expression is true or false: (1/4)*10^(1/2) < 0.1000000000e-3


and  how can I display all iterations obtained from  PW and WDEF2 in a table.

PWW.mw

Thank you for any help 

Dear all

I need to plot the solution obtained from dsolve for a system of differential equation 

plot_analytical_solution_system.mw

Thank you for any help