NAG Library Function Document

nag_real_largest_number (X02ALC)

nag_real_largest_number (X02ALC) returns the largest positive floating-point number.

nag_real_largest_number (X02ALC) is a constant defined in the C Header file.

nag_real_largest_number (X02ALC) returns the largest positive number in the model of floating-point arithmetic described in the x02 Chapter Introduction. The returned value is equal to $\left(1-b^{-p}\right)\times b^{e_{\max }}$, where $b$ is the arithmetic base (see nag_real_base (X02BHC)) and $e_{\max }$ is the maximum exponent (see nag_real_max_exponent (X02BLC)) in the model.

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