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2 votes

Construct plot of $exp(1/z)$

You can play with options and color function. ...
Nasser's user avatar
  • 147k
2 votes

Why doesn't Conjugate[] conjugate exponentials inside other functions?

Why does something like Conjugate[Sqrt[Exp[I x]]] give output Conjugate[Sqrt[E^(I x)]] instead of ...
azerbajdzan's user avatar
2 votes

Why doesn't Conjugate[] conjugate exponentials inside other functions?

Mathematically speaking, conjugation of a function $\bar{f}(z)$ is not necessarily same as the same function evaluated at the conjugate argument $f(\bar{z})$. As an example, if $f(z)=z+i$, clearly $\...
SonerAlbayrak's user avatar
2 votes

Confused about the output of `CosIntegral`

CosIntegral[z] is equivalent to the (complex!) integral ...
Michael E2's user avatar
  • 239k
2 votes

Confused about the output of `CosIntegral`

Two things: $\cos (\pi x)/x$ is an odd function, not even! Other than that you are (I think) confusing two functions, let's just assume real $x$ the CosIntegral[x] ...
Nitaa a's user avatar
  • 790
1 vote
Accepted

Trying to extract the real part of a real big and may complex number

I suggest determining whether the real part of the roots of a polynomial is negative by using Select to filter the roots based on the condition that their real part ...
zeraoulia rafik's user avatar

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