Timeline for How to find the root of the equation which contains imaginary I in it
Current License: CC BY-SA 4.0
5 events
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| Nov 18, 2018 at 14:45 | comment | added | Ulrich Neumann | @ yuriyi Thanks! | |
| Nov 18, 2018 at 14:26 | comment | added | yuriyi |
According to the manual, In NSolve[expr,vars,Reals] all variables, parameters, constants, and function values are restricted to be real. So technically, since the function is complex valued, you should use NSolve[0 == z && x \[Element] Reals && 0 < x < 100000, x, Complexes]. Nevertheless it fails. I would guess it has something to do with the way MMA deals with expressions like $\sqrt{x^2}$.
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| Nov 17, 2018 at 13:11 | comment | added | Ulrich Neumann |
Tricky solution! The result is real and I'm wondering why NSolve[0 == zz && 0 < x < 100000, x , Reals] fails.
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| Nov 17, 2018 at 4:32 | vote | accept | acoustics | ||
| Nov 16, 2018 at 15:04 | history | answered | yuriyi | CC BY-SA 4.0 |