# How to solve a Stiffness matrix?

I am quite new in this field. For my university I prepared a stiffness matrix to solve for a project group. This matrix consists of 450 equations with 450 unknows (it's a Matlab script) and I have the associated load vector $$\{L\}$$ of 450 rows. since I need to calculate the displacements would you advice me to simply do $$\{x\} = [K]^{-1} \{L\}$$?

• Just use any routine for solving linear systems, as inverting a matrix must be avoided. In MatLab, you have the backslash. Look the documentation on mathworkds, you'll find anything you need
– VoB
Jan 25 at 16:17
• This is such a small problem that matlab's backslash operator is the way to go. Jan 25 at 17:02

u = K \ L;