x^2+2xsin(x-0.571)+2cos(x-0.571)=(pi-0.571)^2-2求用matlab怎么计算p
怎么用MATLAB求函数x*(1+cos(x))*cos(x)^2,x在[0,pi]上,
matlab中如何画图!x=-pi:0.1:pi; y=cos(x)/cos(2*x);plot(x.y)
用MATLAB画图,例>> x=0:pi/15:2*pi; >> y1=sin(x); >> y2=cos(x); >>
Matlab u(x,t)=sin(5*pi*x)cos(5*pi*t)+2sin(7*pi*x)cos(7*pi*t)
求用MATLAB编写一波形程序x=(cos(2*pi*260*t)*cos(2*pi*fc*t))+0.5*cos(2*
求积分 cos2x/cos^xsin^2x dx
matlab中y=(0.5+3.*sin(x*pi/180)./(1+x^2)).*cos(x*pi/180);哪里错了
MATLAB求助,用FFT直接计算x=cos(2*pi*40*t)+2sin(2*pi*120*t)+w(t)的功率谱.
当x=pi/2时,用洛比达法则cos(pi/2*sinx)/cosx等于0,可是用matlab编程计算却得1,
怎么用matlab计算出pi/2=x+arccos(tan(pi/4-x/2)中未知数x的值
f(x)=xsin(10*pi*x)+2 x∈[-1,2],x=-1:0.1:2;y=x.*sin(10*pi.*x)+
matlab中为什么y=2*exp(-0.5*x)*cos(4*pi*x)会报错