denormalmin

Smallest denormalized quantized number for quantizer object

Syntax

x = denormalmin(q)


Description

x = denormalmin(q) is the smallest positive denormalized quantized number where q is a quantizer object. Anything smaller than x underflows to zero with respect to the quantizer object q. Denormalized numbers apply only to floating-point format. When q represents a fixed-point number, denormalmin returns eps(q).

Examples

q = quantizer('float',[6 3]);
x = denormalmin(q)

x =

    0.0625

Algorithms

When q is a floating-point quantizer object,

$$x=2^{E_{min}-f}$$

where E_min is equal to exponentmin(q).

When q is a fixed-point quantizer object,

$$x=\mathrm{eps}(q)=2^{-f}$$

where f is equal to fractionlength(q).

Version History

Introduced before R2006a