How to create matrix using for loop and if statment

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ibrahim alzoubi
ibrahim alzoubi 2021년 8월 3일
답변: KSSV 2021년 8월 3일
How Can I create for loop to fix "Matrix dimensions must agree." problem by picking a number from range 1 to 24 and simulate it.
clc
clear all
number_of_the_yearly_day = 1:1:365; %n
T=1:1:24;
declination=23.45.*sin((2.*pi.*(number_of_the_yearly_day-80))./(365));%?
latitude=31.963158; %?
Zenith_angle=latitude-declination; %??
tilt_angle=Zenith_angle;%?
altitude=1-Zenith_angle; %?
w=15.*(12-T);
Y=acosd(sin(altitude).*sin(latitude)-sin(declination)./(cos(altitude).*cos(latitude)));
X=asind(sin(declination).*sin(latitude)+cos(latitude).*cos(declination).*cos(w));
plot (X,Y)
when I simulate this it gives me "Matrix dimensions must agree.".

답변 (1개)

KSSV
KSSV 2021년 8월 3일
number_of_the_yearly_day = 1:1:365; %n
T=1:1:24;
declination=23.45.*sin((2.*pi.*(number_of_the_yearly_day-80))./(365));%?
latitude=31.963158; %?
Zenith_angle=latitude-declination; %??
tilt_angle=Zenith_angle;%?
altitude=1-Zenith_angle; %?
w=15.*(12-T);
[declination,w] = meshgrid(declination,w) ;
Y=acosd(sin(altitude).*sin(latitude)-sin(declination)./(cos(altitude).*cos(latitude)));
X=asind(sin(declination).*sin(latitude)+cos(latitude).*cos(declination).*cos(w));
plot(X',Y')

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