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第一题方程求解
x=-pi/4:pi/12:pi/4;
y=3./tan(asin(sin(0.697)*sin(-0.189)+cos(0.697)*cos(-0.189)*cos(x)));
plot(x,y);
第二题
x=[882:3:942];
y=[1.1496258261.1821989761.2152969551.24905105211.3179931491.353364049
1.3893870911.4261528561.4633998531.5014816221.5402318171.5798533161.620144515
1.6612706131.70329063311.7900509151.8350142721.8808750011.927918447];
f=polyfit(x,y,2)
x0=360:3:942;
y0=polyval(f,x0);
plot(x,y,*,x0,y0);
xlabel(横坐标x)
ylabel(纵坐标y)
title(附件1曲线拟合)
legend(描点坐标,绘制的曲线)
gridoff
%第二题画图:
f=[-pi:0.0001:pi];
h=[0:0.0001:10];
h1=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.863604622))))*1.149625826;
h2=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.876694591))))*1.182198976;
h3=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.889784561))))*1.215296955;
h4=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0)))*1.249051052;
h5=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.915964499))))*1
h6=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.929054469))))*1.317993149;
h7=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.942142693))))*1.353364049;
h8=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.955234408))))*1.389387091;
h9=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.968324377))))*1.426152856;
h10=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.981414346))))*1.463399853;
h11=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(0.994504316))))*1.501481622;
h12=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(1.007594285))))*1.540231817;
h13=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(1.020684255))))*1.579853316;
h14=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(1.033774224))))*1.620144515;
h15=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(1.046864193))))*1.661270613;
h16=(tan(asin(sin(f)*sin(0.1835)+cos(f)*cos(0.1835)*cos(1.059954163))))*1.703290633;
h17=(tan(asin(sin(f)*sin(0.183
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