Question

If saltus of a function is equal to zero, then function is​

Answer 1

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If the one-sided limits f(t0+) and f(t0−) both exist but are unequal in value then f is said to have a simple, or jump, discontinuity at t0. The number f(t0+)–f(t0−) is then called the saltus, or the jump, of the function at t0.

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