Question

请问哪里错了,怎么改?Error using ==> plot Vectors must be the same len

Answer 1

plot要求x与V_x长度一致,也就是每有一个横坐标就该对应纵坐标点V_x = 29/20-(11.6/pi^2)*symsum( (1/x^2)*cos( (10*pi*x*t)/29 ), x, 1, 4 );