# How to remove I.0 from output?

• Mathematica
As I found on many websites, they suggest to use Chop[]. I tried that already but it doesn't work.

This is my output.

{{2 (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2])) Subscript[\[Lambda],
1] (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2] + (I.0 + Subscript[v, 1]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) + (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 2]/Sqrt[2])) Subscript[\[Lambda],
5] (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2] + (I.0 + Subscript[v, 1]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) +
1/2 (2 Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
6] (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2] + (I.0 + Subscript[v, 1]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) -
1/2 I (-(Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
8] (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2] + (I.0 + Subscript[v, 1]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) - \!$$\*SubsuperscriptBox[\(\[Mu]$$, $$1$$, $$2$$]\ $$(Conjugate[I . 0] + \*FractionBox[\(Conjugate[ \*SubscriptBox[\(v$$, $$1$$]]\),
SqrtBox[$$2$$]] + $$(I . 0 + \*FractionBox[ SubscriptBox[\(v$$, $$1$$],
SqrtBox[$$2$$]])\)\ \*
SuperscriptBox["Conjugate", "\[Prime]",
MultilineFunction->None][I . 0 +
\*FractionBox[
SubscriptBox[$$v$$, $$1$$],
SqrtBox[$$2$$]]])\)\) -
1/2 (-(Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[2]) (I.0 +
Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
4] (-Conjugate[I.0] - Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) -
1/2 I (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2])) Subscript[\[Lambda],
8] (-Conjugate[I.0] - Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) -
1/2 I (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 2]/Sqrt[2])) Subscript[\[Lambda],
9] (-Conjugate[I.0] - Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) -
1/4 I (2 Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
10] (-Conjugate[I.0] - Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) + 1/2 I
\!$$\*SubsuperscriptBox[\(\[Mu]$$, $$4$$, $$2$$]\) (-Conjugate[I.0] -
Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) +
1/2 (2 Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
3] (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) +
1/2 (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 1]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2])) Subscript[\[Lambda],
6] (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) +
1/2 (Conjugate[
I.0] I.0 + (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 2]/Sqrt[2])) Subscript[\[Lambda],
7] (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) -
1/4 I (-(Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2]) (I.0 + Subscript[v, 1]/Sqrt[2]) + (Conjugate[I.0] +
Conjugate[Subscript[v, 1]]/Sqrt[2]) (I.0 + Subscript[v, 2]/
Sqrt[2])) Subscript[\[Lambda],
10] (Conjugate[I.0] + Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]]) - 1/2
\!$$\*SubsuperscriptBox[\(\[Mu]$$, $$3$$, $$2$$]\) (Conjugate[I.0] +
Conjugate[Subscript[v, 2]]/Sqrt[
2] + (I.0 + Subscript[v, 2]/Sqrt[2]) Derivative[1][Conjugate][
I.0 + Subscript[v, 1]/Sqrt[2]])}}

I also would like to know the difference between Conjugate[] and Conjugate'[].

This is the screenshot.

DrClaude
Mentor
What is the input that gave you this?

Dale
Mentor
To remove I.0 from your output you should probably remove it from your input. It doesn't make sense to take the dot product of two scalars. I think it indicates an error in your code.

I solved that problem already. The error is in my code. I used I dot with matrix. However, I have 1x2 matrix times 2x1 matrix and I get 1x1 matrix. Can I change this to scalar?

Dale
Mentor
To me it doesn't make sense to have a dot product of I with anything.

If you read the documentation on Dot it says that if either of the arguments are not lists then the Dot remains unevaluated. So that is consistent with the behavior that we see.

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