Timeline for Operation between complex numbers whose answer is not complex
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Oct 9, 2022 at 18:10 | comment | added | user1105100 | It's certainly vague. I guess it could be "a special function, something of mathematical interest, with a name or symbol attached to it." I consider real numbers to be complex. | |
| Oct 9, 2022 at 17:48 | comment | added | Jam | @13870445 In that case, you will need to sensibly specify what you mean by a "standard" function. Given any function $f$ on the complex numbers, we have that its real part $\operatorname{Re} f(z)$ is purely real. By almost anyone's definition, the real part function is "standard". So, essentially all functions fit the bill. | |
| Oct 9, 2022 at 17:42 | comment | added | user1105100 | Yes, I know that. I wanted to ask if there are any meaningful, "standard" operations or functions that have some name or symbol attached to them. | |
| Oct 9, 2022 at 17:39 | history | answered | Jam | CC BY-SA 4.0 |