Revision as of 17:26, 8 March 2009 edit Michael Hardy (talk \| contribs) Administrators 210,577 edits some cleanup; more is needed ← Previous edit		Revision as of 17:28, 8 March 2009 edit undo Michael Hardy (talk \| contribs) Administrators 210,577 edits No edit summary Next edit →
Line 18: Alternatively, we may also take note of real and imaginary portions of complex numbers Cosine is the real portion of a complex number written in cos  ''x '' +  ''i '' sin  ''x'' form. : <math>\int e^x \cos x \, dx</math> Line 26: : <math>\int e^x \mathrm{Re}\{ e^{ix} \} \, dx</math> : <math>\mathrm{Re}\left\{ \int e^x e^{ix} \, dx \right\}</math> : <math>\mathrm{Re}\left\{ \int e^{(i+1)x} \, dx \right\}</math>

Integration using Euler's formula: Difference between revisions