matlab绘图无错误提示 却显示空白图>> st=linspace(0,0.01,1);>> lam=1;>> w=((2*(3*lam-(2-st)*(1-st))^2+(3*lam-2*(2-st)*(1-st))^2)+lam*(9*lam-2*(2-st)^2))/(9*lam-2*(2-st)^2)^2;>> plot(st,w,'r')
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 07:45:41
![matlab绘图无错误提示 却显示空白图>> st=linspace(0,0.01,1);>> lam=1;>> w=((2*(3*lam-(2-st)*(1-st))^2+(3*lam-2*(2-st)*(1-st))^2)+lam*(9*lam-2*(2-st)^2))/(9*lam-2*(2-st)^2)^2;>> plot(st,w,'r')](/uploads/image/z/5429875-67-5.jpg?t=matlab%E7%BB%98%E5%9B%BE%E6%97%A0%E9%94%99%E8%AF%AF%E6%8F%90%E7%A4%BA+%E5%8D%B4%E6%98%BE%E7%A4%BA%E7%A9%BA%E7%99%BD%E5%9B%BE%3E%3E+st%3Dlinspace%280%2C0.01%2C1%29%3B%3E%3E+lam%3D1%3B%3E%3E+w%3D%28%282%2A%283%2Alam-%282-st%29%2A%281-st%29%29%5E2%2B%283%2Alam-2%2A%282-st%29%2A%281-st%29%29%5E2%29%2Blam%2A%289%2Alam-2%2A%282-st%29%5E2%29%29%2F%289%2Alam-2%2A%282-st%29%5E2%29%5E2%3B%3E%3E+plot%28st%2Cw%2C%27r%27%29)
matlab绘图无错误提示 却显示空白图>> st=linspace(0,0.01,1);>> lam=1;>> w=((2*(3*lam-(2-st)*(1-st))^2+(3*lam-2*(2-st)*(1-st))^2)+lam*(9*lam-2*(2-st)^2))/(9*lam-2*(2-st)^2)^2;>> plot(st,w,'r')
matlab绘图无错误提示 却显示空白图
>> st=linspace(0,0.01,1);
>> lam=1;
>> w=((2*(3*lam-(2-st)*(1-st))^2+(3*lam-2*(2-st)*(1-st))^2)+lam*(9*lam-2*(2-st)^2))/(9*lam-2*(2-st)^2)^2;
>> plot(st,w,'r')
matlab绘图无错误提示 却显示空白图>> st=linspace(0,0.01,1);>> lam=1;>> w=((2*(3*lam-(2-st)*(1-st))^2+(3*lam-2*(2-st)*(1-st))^2)+lam*(9*lam-2*(2-st)^2))/(9*lam-2*(2-st)^2)^2;>> plot(st,w,'r')
st=linspace(0,0.01,10); % 注意第三个输入值
lam=1;
w=((2*(3*lam-(2-st).*(1-st)).^2+(3*lam-2*(2-st).*(1-st)).^2)+lam*(9*lam-2*(2-st).^2))./(9*lam-2*(2-st).^2).^2; % 加“.”,是点乘
plot(st,w,'r')