IS SIGNUM FUNCTION GRAPH BOUNDED OR UNBOUNDED?

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IS SIGNUM FUNCTION GRAPH BOUNDED OR UNBOUNDED?

LAKSHYA CHOUDHARY 13th Apr, 2018

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None 15th Apr, 2018

A real function f is bounded if it is bounded both from above and below. Equivalently, a function f is bounded if there is a number h such that for all x from the domain D( f ) one has -h f(x) h, that is, f(x)|. Bounded from below means that the graph lies above some horizontal line.

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