Filter Design Toolbox

realmax

Return the largest positive quantized number

Syntax

• x = realmax(q)
  

Description

x = realmax(q) is the largest quantized number representable where q is a quantizer. Anything larger overflows.

Examples

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

returns x = 14.

Algorithm

If q is a floating-point quantizer, the largest positive number, x, is

If q is a signed fixed-point quantizer, the largest positive number, x, is

If q is an unsigned fixed-point quantizer (mode = 'ufixed'), the largest positive number, x, is

See Also
quantizer, realmin, exponentmin, fractionlength

realizemdl

realmin