Notion of a virtual derivative
Abstract
Diagrams as a graphic expresion of derivatives is proposed for calculation of derivatives for composed function. The concret diagram is understood as a virtual derivative in contrast of concret derivative. In polynomial expression of functions derivative the concret derivative will be every monomic member, and the virtual derivative represent the sum of similar monomic members. The word virtual denotes that we dont need to know every virtual derivative, we don't write all the sequence of these virtual derivatives, and simply pick the needed one. This is in contrast of tradition to write the whole algebraic expresion as a denotion of whole function's derivative. Such graphic expresion can be helpful in the problems of differential geometry, in the various asymptotic expantions, also in the solution of some differential equations.
- Publication:
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arXiv e-prints
- Pub Date:
- January 2011
- DOI:
- 10.48550/arXiv.1101.0974
- arXiv:
- arXiv:1101.0974
- Bibcode:
- 2011arXiv1101.0974V
- Keywords:
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- Mathematics - General Mathematics
- E-Print:
- The diagrams are drown with the help of xy-pic and can be automaticly generated for the derivative of large degry of more general composed function