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對不起我只是在學習，但我嘗試理解爲什麼這行代碼是在行電工（第17行） P導致錯誤17.變量p改變大小，每個互爲作用錯誤
錯誤（ i，j）= p * A（i）* E（i）* 0.01; ％的總的平均日發電（二維矩陣）
clear all;
close all;
%--------------------------------------------------------
% Vector of available area widths (a 1D array of numbers)
Wmiles = [1:1:150; % width of the square area in miles (vector or 1D array)
Wmeters = Wmiles*1609; % width of the square area in meters (vector or 1D array)
A = Wmeters*Wmeters; % area in m^2 (vector or 1D array); note element-by-element
% vector multiplication!
%--------------------------------------------------------
% Vector of available array efficiencies (a 1D array of numbers)
E = [1:1:20]; % efficiency percentage (vector or 1D array)
%--------------------------------------------------------
% Matrix of all available total output powers of the array (a 2D array of numbers)
p = 270.9; % average daily solar radiation in W per m^2 (scalar)
for i = 1:length(A) % index i corresponds to different areas A
for j = 1:length(E) % index j corresponds to different efficiencies E
P(i,j) = p*A(i)*E(i)*0.01; %"Causing ERROR" total average daily power (2D matrix)
end
end
%--------------------------------------------------------
% "Plot" the matrix - a contour plot of all available total output powers
v = [2 10 50 100 300 500 1000]; % create contour plot levels in GWatts
C = contourf(P*1e-9, v); % create contour plot of output powers in GWatts
colormap(summer);
clabel(C, 'FontSize', 11, 'Color', 'r'); % be fancy (do not have to)
grid on; xlabel('Efficiency, %'); ylabel('Area size, m^2');