Higher precision for the result log(x)
I am using
double c, y, z; double x = c*(log(y)-log(z));
Well the result is correct, as long as "c" is small. If it gets bigger, the result of x diverges pretty much from the same result calculated in R or in Mathematica.
I suppose, a higher precision of more decimal places - especially if y and/or z is small - might lead to better results.
I tried to solve it with QString and precision, but this did not work so far.
Is there a better solution for increasing the precision of decimal places?
Please let me know!
This is not really a Qt question.
C++ double type has a precision defined by the IEEEE 754 standard and it is not configurable.
I will have a look!
Topic moved to C++ Gurus