Hello,

I'm working with HP Prime emulator (HP Prime Virtual Calculator / Build 2016 12 8. Rev:11226). Trying to calculate Euler's equation (e^(i*pi)+1=0) I've got the strange result: −2.06761537357ᴇ−13 instead of zero. But, what's surprising - other online calculators (as for example Symbolab, Wolfram Alpha etc.) show correctly - zero. It must be, of course problem of internal computational precision - I suppose, but I don't understand why I've got just this number. Could somebody test it or/and explain it for me?

Thanks in advance,

Marek.

I'm working with HP Prime emulator (HP Prime Virtual Calculator / Build 2016 12 8. Rev:11226). Trying to calculate Euler's equation (e^(i*pi)+1=0) I've got the strange result: −2.06761537357ᴇ−13 instead of zero. But, what's surprising - other online calculators (as for example Symbolab, Wolfram Alpha etc.) show correctly - zero. It must be, of course problem of internal computational precision - I suppose, but I don't understand why I've got just this number. Could somebody test it or/and explain it for me?

Thanks in advance,

Marek.