loading matrix in C/C++ and memory management

[Hairong Shang]

We are starting to incorporate octave methods into our software because 
of its fast speed in numerical calculations, comparable to matlab.
I have tested the matrix svd, it works just great! We will be probably 
free of matlab finally. However, I am new to octave, the help list
helped me in learning how to call octave libaries in my C/C++ code. 
However, I still have some question (will be more in the future)
such as how to load matrix in C/C++,
in my input file, I can easily get the value of each column in double 
format,
for example
double *c1, *c2, *c3;
int rows=50, cols=3;

How to create the octave matrix with the above data? The memory of c1, 
c2, and c3 may not be conjugate, however,
the memory of octave matrix is conjugate in column order, right?

Another similar question is:
how to append or insert a vector create by octave_rand::vector(r) into 
the existing matrix?

The third question is about the memory management of octave? Should I 
explicitly free the memory in the following loop?

for (i=0;i<10;i++)
   Array a=octave_rand::vector(5);

since the memory is allocate at each iteration.

Thank you.

Hairong



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