《电路》（英文版）14-3 Waveform symmetry

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)

3 A periodic function f(t) is said to be half-wave symmetry iff(0=f(++1/2) n=2,4,6 0 =1,3,5..an=0 b.=0

3 A periodic function f (t) is said to be half-wave symmetry if f(t)= -f(t+T/2). n=2,4,6….    = = 0 0 n n b a n=1,3,5... an = 0