Filter Design Toolbox

denormalmin

Return the smallest denormalized quantized number for a quantizer

Syntax

• x = denormalmin(q)
  

Description

x = denormalmin(q) is the smallest positive denormalized quantized number where q is a quantizer. Anything smaller than x underflows to zero with respect to the quantizer 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]); 
  denormalmin(q) 
  

returns the value 0.0625 = 1/16.

Algorithm

When q is a floating-point quantizer, , where Emin is equal to exponent(q).

When q is a fixed-point quantizer, , where f is equal to fractionlength(q).

See Also
denormalmax, eps, quantizer

denormalmax

dfilt.calattice