Hi

I not quite the maths whizz as some people on here. However I am trying to write a script for Macaulay's with respect to beam deflection
but I cannot see how to do the double intergration. Help.

An example of how to input f''(x) = nx into Smath for double integration would help a lot.

Many thanks

I have had a look around the net and it would appear that one can solve double integrals using the
Jacobian matrix. Please can any helpin pointing me first into the Jacobian Matrix for dummies, then something
a little deeper.

Hello,

Double integrals are not applied into Smath. As for the Jacobian, you can use Jacob() function

[MATH=eng]f(x,y):mat(x+2*y,x^4-y^3,2,1)[/MATH]

[MATH=eng]Jacob(f(x,y),mat(x,y,2,1))=mat(1,2,4*x^3,-3*y^2,2,2)[/MATH]

or use the plugin made by w3b5urf3r - NonlinearSolvers. There you will find Jacobian() function as well.

[MATH=eng]Jacobian(f(x,y),mat(x,y,2,1))=mat(1,2,4*x^3,-3*y^2,2,2)[/MATH]


Regards,
Radovan