The Voigt functions U, V, and H (sometimes called the line broadening function) are defined by
where
erfc is the complementary error function, and w(z) is the Faddeeva function.
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“Those things which now most engage the attention of men, as politics and the daily routine, are, it is true, vital functions of human society, but should be unconsciously performed, like the corresponding functions of the physical body.”
—Henry David Thoreau (1817–1862)
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