NAG Library Routine Document

X02AKF

X02AKF returns the smallest positive floating point number.

X02AKF returns the smallest positive number in the model of floating point arithmetic described in the X02 Chapter Introduction. The returned value is equal to $b^{e_{\min }-1}$, where $b$ is the arithmetic base (see X02BHF) and $e_{\min }$ is the minimum exponent (see X02BKF) in the model.

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See Section 9 in X02AJF.