how can i plot in the while loop

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fatemeh jan
fatemeh jan 2019-4-8
评论： fatemeh jan 2019-4-8
hey gays ive written a code @ it dosent have an error but it doesnt plot what i want what can i do with this ?
clear
t=16;
d=23;
M=5;
N1=floor(((275*(1/M))-30+d)-2);
s1=23.45*sind((360/365)*(284+(N1+2)));
l=35.44;
B=(N1-81)*360/364;
h=0.25*(t-12)*60;
z(1)=0;
while z<pi
z=0.1+z;
x=sin(l)*sin(s1)*cos(B)-cos(l)*sin(s1)*sin(B)*cos(z)+cos(l)*cos(s1)*cos(h)*cos(B)+sin(l)*cos(s1)*cos(h)*sin(B)*cos(z)+cos(s1)*sin(h)*sin(B)*sin(z)
theta=acos(x)
plot(theta,z)
end
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fatemeh jan
fatemeh jan 2019-4-8
i want to plot(theta,z) with 0< z<pi and theta they result
fatemeh jan
fatemeh jan 2019-4-8
i used plot(theta,z,'*') and it worked :D

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采纳的回答

Alex Mcaulley
Alex Mcaulley 2019-4-8
Then, you simply need this:
t=16;
d=23;
M=5;
N1=floor(((275*(1/M))-30+d)-2);
s1=23.45*sind((360/365)*(284+(N1+2)));
l=35.44;
B=(N1-81)*360/364;
h=0.25*(t-12)*60;
z = 0:0.1:pi;
theta = acos(sin(l)*sin(s1)*cos(B)-cos(l)*sin(s1)*sin(B)*cos(z)+cos(l)*cos(s1)*cos(h)*cos(B)+sin(l)*cos(s1)*cos(h)*sin(B)*cos(z)+cos(s1)*sin(h)*sin(B)*sin(z));
plot(theta,z)

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