这个函数将在Qa定点数字。b格式小数where "a" is the number of bits to the left of the binary point not including the sign bit, and "b" is the number of bits to the right of the decimal point. The input format is either binary or hexadecimal (hex is the default). The function is called by the command "q2dec(x,a,b,format)" where x is a string representing the input number in Qa.b format, "a" is "a" is the number of bits to the left of the binary point not including the sign bit, "b" is the number of bits to the right of the decimal point, and format is either 'bin' or 'hex' (format is optional, 'hex' is the default).
例如,下面的命令可以转换十六进制数字0 x4000 Q0.15(也称为最喜欢)十进制格式:
> > q2dec (' 4000 ', 0, 15)
ans =
0.5000

下面的命令可以转换成二进制数1100000000000000 Q0.15(也称为最喜欢)十进制格式:
> > q2dec(' 1100000000000000 ', 0, 15日,“本”)
ans =
-0.5000

几个数字可以在一次调用转换通过将每个输入矩阵的行数:
> > x = [‘8000’;“C000”;“0000”;' 4000 ');
> > q2dec (x 0 15)
ans =
-1.0000
-0.5000
0
0.5000

看到我的其他提交dec2q小数转换为Qa。b格式。