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During examination it is not possible to revise complete book. So, we have come up with quick revision notes which include important terms and formulae. This unit notes is very useful for UPSEE, WBJEE ...

Back in 1948, the journal Physical Review published a paper entitled “Space-Time Approach to Quantum Electrodynamics” by a young physicist named R.P. Feynman at Cornell University. The paper described ...

Cylindrical and spherical coordinates, double and triple integrals, line and surface integrals. Change of variables in multiple integrals; gradient, divergence, and ...