How to calculate numerical integral with more than 3 variables in Matlab? ( > integral3 )

How to calculate numerical integral with more than 3 variables in Matlab? ( > integral3 )

variable x,y,z,w for example.

Answer 1

[Torsten]

Which method is best-suited depends on the specific problem.

Maybe

https://de.mathworks.com/matlabcentral/fileexchange/47919-integraln-m

already helps.

[Dag Borlaug]

Is there any simple way such as (integral4, integral5, ......)?

[Torsten]

integralN has code for integral4, integral5 and integral6.

You will always have to start from integral1, integral2 and integral3 which are official MATLAB functions and iterate them in some way to arrive at your required dimension.

[Dag Borlaug]

Ok, thanks for help!

[JICHAO ZHANG]

for example, you have four multiple integral question.

you could compute one integral inner and outter compute three integral by integral3 programma.

@(x,y,z,s)integral(@sf(x,y,z), s1,s2)

integral3(f(x,y,z),x1,x2,y1,y2,z1,z2)