Brian_D's latest activity
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Brian_D replied to the thread Compton shift problem.Got it, thank you PeroK.
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Brian_D replied to the thread Finding the nth roots of a complex number.Duly noted, thank you.
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Brian_D replied to the thread Finding the nth roots of a complex number.OK, but the precision of the approximation is irrelevant to what I was talking about.
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Brian_D replied to the thread Compton shift problem.Important reminder, thank you PeroK.
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Brian_D replied to the thread Compton shift problem.Yes, I see mistake mistake now, and with this correction I also get 18%. Thank you, renormalize.
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Brian_D replied to the thread Compton shift problem.Yes, thank you Steve4Physics, my mistake was using the wrong value for cos 110 degrees.
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(1-cos 110 degrees) is .342, so the Compton shift is .00243 * 10^-9 * .342 = 8.31 * 10^-13 m. The wavelength of the scattered photon is...
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Brian_D replied to the thread Unable to display LaTeX.Thank you.
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Brian_D replied to the thread Finding the nth roots of a complex number.Yes. I said that the cube root of 2*sqrt(2) is 1.41, which is also correct.
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Brian_D replied to the thread Finding the nth roots of a complex number.The signs are wrong because -2 +2i and 2 -2i have the same absolute value. Everything is crystal clear to me now. Thank you, FactChecker!
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Brian_D replied to the thread Finding the nth roots of a complex number.I see now that there was a mistake in my previous post. If the modulus is supposed to be the absolute value of -2 + 2i, then that...
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Brian_D replied to the thread Finding the nth roots of a complex number.I posted a reply, but somehow it got lost so I'll try again. Thank you, FactChecker, got it. So let's see how that works. For k=0...
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Brian_D replied to the thread Finding the nth roots of a complex number.
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Brian_D replied to the thread Finding the nth roots of a complex number.Thank you, Renormalize. However, if you check Mathematica's (rectangular) solutions by cubing each one, only the first solution...
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Brian_D replied to the thread Finding the nth roots of a complex number.Correction, there is not a real root in this case, but in any case, I'm still not getting correct solutions from the formula.
