Make a matrix with ones and if

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Josefine Jonsson
Josefine Jonsson 2015-12-9
评论： Josefine Jonsson 2015-12-9
Hi, I have a pretty simple question, but are kinda bad with ones(). I need to make a special matrix, for example, I have a 4 meter long and 2 meter width boat.
nx= 8 %Number of slices for x
hx= 4/nx %Steplenght for x
same for y
ny=8 %Number of slices for y
hy=2/ny %steplenght for y
I want a matrix:
A=[0 0 0 0 0 0 0 0
0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
1 1 1 1 1 1 1 1 osv]
so the number of rows will be nx+1 points, with x0=1, x1=xo+hx, x2=x1+hx and the number of columns will be ny+1 points, with the same value in each row.
A=[x0 x0 x0 x0(ny-times)
x1 x1 x1 x1(ny times)
x2 x2 x2 x2(ny-times)
for nx+1 rows)
I'm gonna continue take values from a function and want a 100x100 matrix so I really need help with the ones() in the matrix. A=ones(x0+1, ny) didn't work.

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采纳的回答

Matt J
Matt J 2015-12-9
xx=(0:nx)*hx +x0;
yy=(0:ny-1)*hy +y0;
[A,B]=ndgrid(xx,yy);

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