nbo10 said:Hi All,
I'm using mathematica to solve a few NxN matrices, but the eigen(values/vectors) comes back with 0. i, which is zero but how do I evaluate it as zero so that I can do comparison, > < =, etc... Thanks
JMD
To input a matrix in Mathematica, use the command "MatrixForm" followed by the matrix elements in curly braces {}. For example, if you want to input a 2x2 matrix with elements 1, 2, 3, and 4, you would type "MatrixForm[{{1,2},{3,4}}]".
Mathematica has built-in functions for basic matrix operations such as addition, subtraction, multiplication, and division. For example, to add two matrices A and B, you can use the command "A + B". To multiply two matrices, you can use the command "A.B".
To solve a system of linear equations, you can use the "Solve" function in Mathematica. Input the equations in the form of "a1x + b1y = c1" and "a2x + b2y = c2" and use "Solve[{a1x + b1y == c1, a2x + b2y == c2}, {x,y}]" to find the values of x and y that satisfy the equations.
Yes, Mathematica has the ability to handle large matrices with thousands or even millions of elements. However, it may take longer to perform operations on larger matrices, so it is important to optimize your code for efficiency.
Yes, Mathematica has a built-in function called "MatrixPlot" that allows you to visualize matrices as a grid of colored squares, with each square representing an element in the matrix. This can be useful for quickly identifying patterns or outliers in your data.