plus and minus signs were invented
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a single occurrence of a process, e.g., the ionization of one atom.
Fractals are very cool!
In geometry, a pair of complementary angles are a pair which add up to equal 90 degrees.In probability, the complement of an occurrence of an event is the non-occurrence of an event.
In math best
You want to know whats the answer for last nights homework? Go do it. The homework is not that hard you fool.