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--- Introduction ---
This is a classical exercise on vector spaces: one gives a new basis
of as well as a vector written under the standard basis
of , and you should find the coefficients of
in the basis , that is the real numbers
such that :
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Description: write a vector under another basis. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games