Dimension and line Error

Question

Jocelyn 2020-11-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/646898-dimension-and-line-error

回答： Alan Stevens 2020-11-13

Good day,

I am recieving two errors in the following code. Your assistance in solving these errors would be much appreciated. Thanks

Error message 1 (Note: there is no 'line 51' in my code. The last line at 'T =' is on line 43:

Error using ^ (line 51)

Incorrect dimensions for raising a matrix to a power. Check that the matrix is square and the power is a scalar. To perform elementwise matrix powers, use '.^'.

Error message 2

Error in Assign5_Prob7 (line 37)

Vy(i) = (4*Vy_o)/((2+(k3*sqrt(Vx_o)*t(i)))^2) - g*(4*t(i)+(2*k3*sqrt(Vx_o)*t^2)+ ((k3^2*Vx_o*t^3)/3))/((2+(k3*sqrt(Vx_o)*t))^2);

for i = 1:6
    x(i) = (i-1)*200*3;                          
    y(i) = (i-1)*200*3;                          
    Vx(i) = (sqrt(Vx_o) - ((k3/2)*x(i)))^2;   
    
    t(i) = (x(i)/Vx_o)*sqrt(Vx_o/Vx(i));  
    Vy(i) = (4*Vy_o)/((2+(k3*sqrt(Vx_o)*t(i)))^2) - g*(4*t(i)+(2*k3*sqrt(Vx_o)*t^2)+ ((k3^2*Vx_o*t^3)/3))/((2+(k3*sqrt(Vx_o)*t))^2);  
end
T = table(x(:)/3, x(:), Vx(:), t(:), Vy(:), 'VariableNames',{'yards', 'feet', 'x -vel', 'time of flight', 'y-vel'})