To indicate approximate equality, one can use ≃, ≅, ~, ♎, or ≒.
I need to indicate an approximate inequality. Specifically, I know A is greater than a quantity of approximately B.
Is there a way to succinctly express this mathematically?
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$\begingroup$ Can you give more details? $\endgroup$– Mose WintnerAug 12, 2015 at 20:20
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4$\begingroup$ If you like. I know anecdotally that steam plumes are visible on the fumarolic ice towers of Mt Erebus when the relative humidity goes above something like 20%. $\endgroup$– foobarbecueAug 12, 2015 at 20:25
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1 Answer
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LaTeX has the symbols \lessapprox ($\lessapprox$) and \gtrapprox ($\gtrapprox$).
Incidentally, a long time ago I came across this awesome Short Math Guide for $\LaTeX$, a free pdf by the American Mathematical Society. Well-worth keeping it close by.
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2$\begingroup$ Brilliant! I consistently underestimate LaTeX... and unicode for that matter... $\endgroup$ Aug 12, 2015 at 20:24
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37$\begingroup$ In addition, when you want only one tilde symbol, use \lessim and \gtrsim $\endgroup$– WouterJan 27, 2017 at 15:53
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12$\begingroup$ Since the link for this math guide appears to no longer work, I here provide a link to the same document that does work (as of 1 March 2017) math.hkbu.edu.hk/TeX/short-math-guide.pdf $\endgroup$ Mar 1, 2017 at 19:02
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19$\begingroup$ @Wouter that should be \lesssim with a triple s $\endgroup$ Oct 27, 2017 at 2:36
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13$\begingroup$ These symbols are not available in vanilla latex; you need to use the package
amssymb. $\endgroup$ May 3, 2019 at 11:45