ERIC Number: EJ789612
Record Type: Journal
Publication Date: 2008-Apr
Reference Count: 3
The Implicit Function Theorem and Non-Existence of Limit of Functions of Several Variables
dos Santos, A. L. C.; da Silva, P. N.
International Journal of Mathematical Education in Science and Technology, v39 n3 p389-394 Apr 2008
We use the Implicit Function Theorem to establish a result of non-existence of limit to a certain class of functions of several variables. We consider functions given by quotients such that both the numerator and denominator functions are null at the limit point. We show that the non-existence of the limit of such function is related with the gradient vectors of the numerator and denominator functions. We prove the limit does not exist if the dimension of the vector subspace spanned by the gradient vectors is [greater than or equal] 1.
Descriptors: Arithmetic, Demonstrations (Educational), Structural Equation Models, Path Analysis, Computation, Mathematical Formulas, Mathematical Concepts, Mathematics Education
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A