Octave constants

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realmax Maximum double value that can be represented in octave in double format.
realmin Minimum double value that can be represented in octave in double format.
pi Value of pi as accurate as possibly can be stored in a double variable
e Value of e as accurate as possibly can be stored in a double variable
i,I,j,J All four represent square root of -1, imaginary constant
NA Same as Not Available('NA') data type
true Logical constant representing true values. Numerically it evaluates to 1.
false Logical constant representing false values. Numerically it evaluates to 0.


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