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seen Nov 16 at 21:36

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Nov
5
comment BOOL algebra : simplifications
Yes, I am sure.
Nov
5
comment BOOL algebra : simplifications
Now it makes sense ! Thanks again !
Nov
5
comment BOOL algebra : simplifications
I must be stupid but I don't get it. I understand the development of the general law but I can't make the relation with the development above. I have : A∨B = ... = A∨(¬A∧B) which is not equals to ¬(A∧B)∧(A∨B) ...
Nov
5
accepted BOOL algebra : simplifications
Nov
5
comment BOOL algebra : simplifications
Thanks a lot for this answer ! Still, I don't understand why line (2) is algebraically equivalent to line (3).
Nov
3
asked BOOL algebra : simplifications
Aug
24
awarded  Commentator
Aug
24
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
oh yes i got it, because it it a length ! (and length can't be negative...)
Aug
24
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
Yes thank you... I started to mix everything.. Now I am ok with everything :)
Aug
23
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
@Sasha : Thank you very much for your help ! I didn't pay attention to cos(3) < 0
Aug
23
accepted Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
Aug
23
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
why do we want it to be positive ?
Aug
23
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
I misunderstood abs and module notation for |cos(3)| , I thought it was module... Thank you for this wonderful answer !
Aug
23
awarded  Editor
Aug
23
comment Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
@Rahul: you are right ! I mistyped
Aug
23
revised Complex number + trigo : $-1 + \tan(3)i$ , find modulus and argument
added 1 characters in body; edited title