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waterque

½ð³æ (ÕýʽдÊÖ)

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clear
clc
format long;
a = 1.0/0.00405;
b = -10:0.005:10;
delta = sqrt((1 + 2*a)^2 - 4*b.^2);
y1 = b.*cot(b);
y2_plus = ((1 - 2*a) - delta)/2;
y2_minus = ((1 - 2*a) + delta)/2;

figure(101);
plot(b,y1,'r',b,y2_plus,'g');
grid on;

figure(102);
plot(b,y1,'r',b,y2_minus,'g');
grid on;

math_1.png

ÐÐ×Ô¼ºµÄ·£ºwaterque@hotmail.com
11Â¥2013-02-18 17:34:05
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