Sun Lan-min
Abstract
Constant is the simplest function,but its judgment is not simple.It is clear to see from Lagrange theorem The enough and essential condition of f(x) being constant is f′(x)=0.Several enough and essential conditions of being constant are given to prove it.It also supply practical ways to prove that function meeting certain requirements is constant function.
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Constant is the simplest function,but its judgment is not simple.It is clear to see from Lagrange theorem The enough and essential condition of f(x) being constant is f′(x)=0.Several enough and essential conditions of being constant are given to prove it.It also supply practical ways to prove that function meeting certain requirements is constant function.
Key concepts: Constant (computer programming), Function (biology), Constant function, Simple (philosophy), Mathematics, Calculus (dental), Mathematical analysis, Mathematical economics