2.56^2.56 equals to about 11.09(compared to the shown 11.01). When I worked it out, the approximation that I got for "k" was 2.5, with a line over the five, indicating that 5 would be infinitely repeating after the decimal. This is much closer to 11 then 2.56, even though I admit the 2.56 is close. Addition comment: I do not know if Germany uses the line I am speaking of for repeating decimals (repeating sequence of digits), so the rational form of the decimal solution I used for k is 23/9 for the closest approximation I got for the checked value of 11.
Assume it to be floating point error from the calculators, or both calculators having different algorithms to approximate it, the W function is a tough one.
2.56^2.56 equals to about 11.09(compared to the shown 11.01). When I worked it out, the approximation that I got for "k" was 2.5, with a line over the five, indicating that 5 would be infinitely repeating after the decimal. This is much closer to 11 then 2.56, even though I admit the 2.56 is close.
Addition comment: I do not know if Germany uses the line I am speaking of for repeating decimals (repeating sequence of digits), so the rational form of the decimal solution I used for k is 23/9 for the closest approximation I got for the checked value of 11.
Assume it to be floating point error from the calculators, or both calculators having different algorithms to approximate it, the W function is a tough one.
It's actually 2.5555.