Illustration of the dependence of epsilon and delta for the epsilon-delta-criterion of continuity. The function f:R→R:x↦x2{\displaystyle f:\mathbb {R} \to \mathbb {R} :x\mapsto x^{2}} is shown. f{\displaystyle f} is continuous at x0=1{\displaystyle x_{0}=1}.
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Stephan Kulla (User:Stephan Kulla)