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zsj627

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[ÇóÖú] ÓйØsolveº¯ÊýµÄһЩÎÊÌâ ÒÑÓÐ1È˲ÎÓë

ÎÒдÁËÕâÑùÒ»¸ö³ÌÐò
syms x y k1 k2 y1 a b r y3 x3 c d x1
a=0.0422;
b=-0.79577;
r=11.547;
x=0:pi/16:6*pi
y=a*x.^2+b*x;

k1=2*a*x+b;
k2=-1./(k1);
%y1=k2.*(x1-x)+y;
%y3=y-sqrt(r^2-(x3-x).^2);
[c,d]=solve('d=k2*(c-x)+y','d=y-sqrt(r^2-(c-x)^2)',c,d);
s=[c,d];
µÃµ½ÁËÒ»¸ö½âÊÇÕâÑùµÄ
s =

[ x + r*(1/(k2^2 + 1))^(1/2), y + k2*r*(1/(k2^2 + 1))^(1/2)]
[ x - r*(1/(k2^2 + 1))^(1/2), y - k2*r*(1/(k2^2 + 1))^(1/2)]
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