matlab画分段函数a=4e6;b=3e6;GM=4e10;Gp=GM/(4/3*pi*(a^3-b^3));A=Gp*pi;%以上均只是定义的常系数x1=0:10:b;x2=b:10:a;x3=a:10:2*b;y1=2*A*(a^2-b^2);y2=2/3*A*(3*a^2-x2^2-2*b^3/x2);y3=4/3*A*(a^3-b^3)/x3;x=[x1,x2,x3];y=[y1,y2,y3];plot(x,y,'r');
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matlab画分段函数a=4e6;b=3e6;GM=4e10;Gp=GM/(4/3*pi*(a^3-b^3));A=Gp*pi;%以上均只是定义的常系数x1=0:10:b;x2=b:10:a;x3=a:10:2*b;y1=2*A*(a^2-b^2);y2=2/3*A*(3*a^2-x2^2-2*b^3/x2);y3=4/3*A*(a^3-b^3)/x3;x=[x1,x2,x3];y=[y1,y2,y3];plot(x,y,'r');
matlab画分段函数
a=4e6;
b=3e6;
GM=4e10;
Gp=GM/(4/3*pi*(a^3-b^3));
A=Gp*pi;
%以上均只是定义的常系数
x1=0:10:b;
x2=b:10:a;
x3=a:10:2*b;
y1=2*A*(a^2-b^2);
y2=2/3*A*(3*a^2-x2^2-2*b^3/x2);
y3=4/3*A*(a^3-b^3)/x3;
x=[x1,x2,x3];
y=[y1,y2,y3];
plot(x,y,'r');
这段代码老报错“Inputs must be a scalar and a square matrix.”,
matlab画分段函数a=4e6;b=3e6;GM=4e10;Gp=GM/(4/3*pi*(a^3-b^3));A=Gp*pi;%以上均只是定义的常系数x1=0:10:b;x2=b:10:a;x3=a:10:2*b;y1=2*A*(a^2-b^2);y2=2/3*A*(3*a^2-x2^2-2*b^3/x2);y3=4/3*A*(a^3-b^3)/x3;x=[x1,x2,x3];y=[y1,y2,y3];plot(x,y,'r');
我运算了下程序,倒是没出现“Inputs must be a scalar ”的错误.
倒是出现了以下问题：
? Error using ==> mpower
Matrix must be square.