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I have to solve a system of non-linear equations for a wide range of parameter space. I'm using FindRoot which is sensitive to initial conditions so I have to do it by hand and by trial and error and plotting, rather than putting the equations in a loop or in a table.

So what I want to do is create a databse or a Matrix with a fixed number of columns but variable number of rows so I can keep appending it with new results as and when I solve for them.

I've looked at a few mathematica books and their online reference but they only teach me how to create a table or a matrix already filled with some numbers or text or functions. What I want to create is a blank variable of the matrix type to which I can keep adding more and more rows (or records) and my database develops to add my solutions for the varying parameter space. Can someone please tell me how I can create a matrix type variable, declare it to be a matrix and then at my own leisure append rows or records to it.

Thanks a lot

N

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# How to create a database in Mathematica

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