MATLAB: How can variables be passed to a function

functionvariable

If I define a function in F.m file with the following:
function zp=F(x,z)
zp=zeros(2,1);
zp(1)=z(2);
zp(2)=a*sqrt(1+z(2)^2)+kx;
That is a function I want to evaluate by using:
[x,z]=ode45('F',[x0,xf],[z10,z20]);
I'm not sure how I can pass a and kx to that function before it is evaluated.

Best Answer

function zp=F(x,z,a,kx)
zp=zeros(2,1);
zp(1)=z(2);
zp(2)=a*sqrt(1+z(2)^2)+kx;
% ---------------------------------------------
[x,z]=ode45(@(x,z),F(x,z,a,kx),[x0 xf],[z10;z20]);
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