\lesssim - LaTeX Symbol

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≲

\lesssim

The symbol \lesssim is used to denote that one quantity is less than or approximately equal to another. It is often used in mathematical analysis and applied mathematics to express inequalities that are not strict but allow for some margin of error or approximation.

Examples

x ≲ y

x is less than or approximately equal to y

x \lesssim y

f (n) ≲ g (n)

Function f(n) grows at a rate less than or approximately equal to g(n)

f(n) \lesssim g(n)

a^{2} + b^{2} ≲ c^{2}

The sum of squares of a and b is less than or approximately equal to the square of c

a^2 + b^2 \lesssim c^2