814-3 Waveform symmetry 1. A function f(t) is said to be even iff(t-f(-t) They are symmetrical with respect to the vertical axis. (bn=0 △入 2 A function f(t) is said to be odd if f(t=f-t) They are symmetrical with respect to the origin. (an=0)
§14-3 Waveform symmetry 1.A function f (t) is said to be even if f (t)=f (-t). 2 A function f (t) is said to be odd if f(t) = -f(-t). They are symmetrical with respect to the vertical axis.(bn=0) They are symmetrical with respect to the origin .(an=0)