Report - Davide Catania davide.catania unibs.it Esercitazioni di ... · F(r(t))¢r0(t)dt. Se F ˘(F1,F2,F3) e r(t)˘x(t)i¯y(t)j¯z(t)k˘x(t)i1 ¯y(t)i2 ¯z(t)i3, si pone dr ˘(dx,dy,dz) e

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