Convert hexadecimal string to number using quantizer object
x = hex2num(q,h)
[x1,x2,...] = hex2num(q,h1,h2,...)
x = hex2num(q,h) converts hexadecimal character
vector h to numeric matrix x.
The attributes of the numbers in x are specified
by quantizer object q. When h is
a cell array, hex2num returns x as
a cell array of the same dimension containing numbers. For fixed-point
hexadecimal representations, hex2num uses two's
complement representation. For floating-point, the representation
is IEEE® Standard 754 style.
When there are fewer hexadecimal digits than needed to represent the number, the fixed-point conversion zero-fills on the left. Floating-point conversion zero-fills on the right.
[x1,x2,...] = hex2num(q,h1,h2,...) converts
hexadecimal representations h1, h2,...
to numeric matrices x1, x2,....
hex2num and num2hex are
inverses of one another, with the distinction that num2hex returns
the hexadecimal representations in a column.
To create all the 4-bit fixed-point two's complement numbers in fractional form, use the following code.
q = quantizer([4 3]); h = ['7 3 F B';'6 2 E A';'5 1 D 9';'4 0 C 8']; x = hex2num(q,h)
x =
0.8750 0.3750 -0.1250 -0.6250
0.7500 0.2500 -0.2500 -0.7500
0.6250 0.1250 -0.3750 -0.8750
0.5000 0 -0.5000 -1.0000