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Offline Вуаутвук  
#1 Posted : 26 February 2020 17:15:45(UTC)
Вуаутвук


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Some of my answers include "і" signs, what should I do to get a regular answer?
At first, I thought it was a problem in the cosine equations but later saw the same problem in other formulas.
TROPtaKhV_Lb2.sm (357kb) downloaded 10 time(s).
Snim54654ok.PNG
Snim545656ok.PNG
Offline PompelmoTell  
#2 Posted : 26 February 2020 17:31:50(UTC)
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"i" indicates that this is a complex number with an imaginary part.
It is completely normal for the cases you have exposed since the square root of a negative number does not make sense in the real field (it is a complex number); in the same way, the arc-cosine makes sense in the real field only for numbers less than or equal to 1

sergio
thanks 1 user thanked PompelmoTell for this useful post.
on 27/02/2020(UTC)
Offline Jean Giraud  
#3 Posted : 26 February 2020 17:40:55(UTC)
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literal 'l' is too confusing, use λ [Greek]
imaginary 'i' and ordinary 'i' are not compatible
especially in for loop... please check.

TROPtaKhV_Lb2 Test back.sm (357kb) downloaded 21 time(s).
thanks 1 user thanked Jean Giraud for this useful post.
on 27/02/2020(UTC)
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