Meng Li
Abstract
This paper discusses the derivative of piecewise function f(x) on the piecewise point x 0 on the condition that the definition of derivative is not necessary to be used,as well as on the condition that the definition of derivative must be used.
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This paper discusses the derivative of piecewise function f(x) on the piecewise point x 0 on the condition that the definition of derivative is not necessary to be used,as well as on the condition that the definition of derivative must be used.
Key concepts: Piecewise, Derivative (finance), Function (biology), Point (geometry), Mathematics, Directional derivative, Piecewise linear function, Second derivative