Elementary matrices

• diag diagonal including or extracting
• eye identity matrix
• ind2sub linear index to matrix subscript values
• linspace linearly spaced vector
• logspace logarithmically spaced vector
• meshgrid create matrices or 3-D arrays
• ndgrid arrays for multidimensional function evaluation on grid
• ones matrix made of ones
• rand Random numbers
• sub2ind matrix subscript values to linear index
• zeros matrix made of zeros