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### Simplify — is this simplest result Mathematica can provide? [duplicate]

I have a question about Simplify: When I do a simplification the returned result is not as simple as I want. When I ask for the Norm of an complex expression, ...
2k views

### Conjugating symbolic expression [duplicate]

I am trying to conjugate a symbolic expression, and I have explicitly stated the real terms. However, I simply can't get it to work: ...
429 views

### Simplify an expression with complex numbers [duplicate]

How can I get a simplify expression of following when all a,b, .., f are real numbers? FullSimplify[Abs[(a+I b)+(c+I d)(e+I f)]^2]
297 views

### How do I declare that a variable represents a real number? [duplicate]

How do I tell Mathematica that a variable is a real number. I searched for this question here and in Google and nothing that was suggested seems to work for me. I must be missing something. My code is ...
74 views

### Trouble getting Mathematica to assume some parameters are real and simplify the expression [duplicate]

Say I enter the following code: FullSimplify[Im[r*Exp[I*theta]^2 + (s + I*t)*Exp[I*theta]], Element[theta | r | s | t, Reals]] I expect to get: ...
28k views

### Extract real part of a complex expression better than Re does

I have a complex expression with real positive variables only. Mathematica Input Style: ...
47k views

### How to tell Mathematica that certain variables are real/imaginary, integer-valued, etc

I'm trying to expedite some quantum mechanical calculations (expectation values etc.) by running them through Mathematica. When I say, for example, ...
9k views

### Remove annoying Conjugate

Here is an expression ...
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### Complex conjugate

How do I complex conjugate a vector? ...
7k views

### How to assume all variables in my code are reals

I won't have any occasion to have any imaginary number in my code. If there are any, that is an error. So allowing the imaginary case simply hinders the equation manipulation and simplification. I ...
8k views

### How to take conjugate of a function?

Naïvely this is what happens and it obviously is not helpful! ...
2k views

### a problem about simplifing conjugate

the situation is as follows ...
475 views

### What is the value Re[Sqrt[1+I*2*x]]?

When I try to evaluate Re[Sqrt[z]], for some values of Mathematica fails to evaluate it. For example, Re[Sqrt[2 + I*x]]` <...