eps

Quantized relative accuracy for fi or quantizer objects

Syntax

d = eps(a)

d = eps(q)

Description

d = eps(a) returns the value of the least significant bit value of the fi object a. The result of this function is equivalent to that given by the Fixed-Point Designer™ function lsb.

d = eps(q) returns the value of the least significant bit of the value of the quantizer object q.

Examples

Quantized Relative Accuracy of fi Object

a = fi(pi, 1, 8)
eps(a)

ans =

    0.1250

Quantization Level of quantizer Object

q = quantizer('fixed',[6 3]);
eps(q)

ans =

    0.1250

Input Arguments

a — Input fi object

fi object

Input fi object.

Data Types: fi

q — Input quantizer object

quantizer object

Input quantizer object.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• Code generation supports scalar fixed-point signals only.

• Code generation supports scalar, vector, and matrix, fi single and fi double signals.

HDL Code Generation

Generate Verilog and VHDL code for FPGA and ASIC designs using HDL Coder™.

• Supported for scalar fixed-point signals only.

• Supported for scalar, vector, and matrix, fi single and fi double signals.