Why R2018a and 2019b give different results for cosine (cosd) function?
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Hello,
given the following code
a = single(-91.5380859);
b = cosd(a);
c = double(b)
I got different results for c depending on the matlab version I use.
2018a: -0.026841441169381
2019b: -0.026841439306736
I figured out that the binary representation for b is different in the last bit:
2018a: 10111100110110111110001010010101
2019b: 10111100110110111110001010010100
So assume that the funtion cosd is rounding in different ways. But why?
Thanks.
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