Index exceeds the number of array elements (1). Error in HW08_Spaceship (line 34) xT =(5(cos(45)+B(T+Kone)sin(T)/2+sin(45)+B(T+1/Kone)cos(T))) >>

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James Keiser 2019-1-30

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https://ww2.mathworks.cn/matlabcentral/answers/442162-index-exceeds-the-number-of-array-elements-1-error-in-hw08_spaceship-line-34-xt-5-cos-45-b

编辑： madhan ravi 2019-1-30

R= 40;
Xo= 125;
B = 42;
Kone = 5;
T = 0: 30;
xT =(5*(cos(45)+B(T+Kone)*sin(T)/2+sin(45)+B*(T+1/Kone)*cos(T)))
yT =(5*(sin(45)+B(T+Kone)*sin(T)/2-cos(45)+B*(T+1/Kone)*cos(T)))
plot (xT,yT,'r--')

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Answer 1

madhan ravi 2019-1-30

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https://ww2.mathworks.cn/matlabcentral/answers/442162-index-exceeds-the-number-of-array-elements-1-error-in-hw08_spaceship-line-34-xt-5-cos-45-b#answer_358608

编辑：madhan ravi 2019-1-30

在 MATLAB Online 中打开

Suspect it should be sind() and cosd() ?:

R= 40;
Xo= 125;
B = 42;
Kone = 5;
T = 0:30;
                    %     v-----------------------------v-----missed it
xT =(5*(cos(45)+B*(T+Kone).*sin(T)/2+sin(45)+B*(T+1/Kone).*cos(T)))
            %    ^---- was the reason for your error
                    %     v-----------------------------v-----missed it
yT =(5*(sin(45)+B*(T+Kone).*sin(T)/2-cos(45)+B*(T+1/Kone).*cos(T)))
            %    ^---- was the reason for your error
plot (xT,yT,'r--')