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Constants and Test Matrices

Pi, Not-a-Number, infinity; Hadamard, Companion, Pascal, and other specialized matrices

Functions

`eps`	Floating-point relative accuracy
`flintmax`	Largest consecutive integer in floating-point format
`i`	Imaginary unit
`j`	Imaginary unit
`Inf`	Create array of all`Inf`values
`pi`	Ratio of circle's circumference to its diameter
`NaN`	Create array of all`NaN`values

`allfinite`	Determine if all array elements are finite
`anynan`	Determine if any array element is`NaN`
`isfinite`	Determine which array elements are finite
`isinf`	Determine which array elements are infinite
`isnan`	Determine which array elements are NaN

`compan`	Companion matrix
`gallery`	Test matrices
`hadamard`	Hadamard matrix
`hankel`	Hankel matrix
`hilb`	Hilbert matrix
`invhilb`	Inverse of Hilbert matrix
`magic`	Magic square
`pascal`	Pascal matrix
`rosser`	Classic symmetric eigenvalue test problem
`toeplitz`	Toeplitz matrix
`vander`	Vandermonde matrix
`wilkinson`	Wilkinson's eigenvalue test matrix

Topics

Missing Data in MATLAB
Handle missing values in data sets.