How do you set up a boundary value problem?

I posted this question a couple days ago, but I recieved no response:

http://www.mathworks.com/matlabcentral/answers/13321-i-am-having-a-lot-of-trouble-solving-this-boundary-value-problem

basically the part that I am havig difficulty is this line:

bcond= @(ya, yb) [ya(1); yb(1)+.5570]

this is where you set up the boundary conditions, but someone please explain this to me? what are these supposed to be exactly? FYI: this equation was modeling the deflection of a beam (the ends are zero)

Answer 1

[Fangjun Jiang]

It is called anonymous function. It is the same as:

function bcond=MyFunction(ya,yb)
bcond=[ya(1);yb(1)+.5570];