Invalid expression please fix :(
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%given data
a = 45; % Angle in degrees
P = 100; % Load in Newtons
h = 1.0; % Truss height in meters
% Calculate horizontal and vertical components of the load
P_horizontal = P * cosd(a);
P_vertical = P * sind(a);
% Calculate reactions at supports
G_x = P_horizontal;
G_y = P_vertical;
% Calculate forces in members
BC_y = G_y;
BC_x = 0;
CL_y = BC_y;
CK_y = 0;
CD_x = 0;
EF_x = 0;
EF_y = 0;
KL_x = 0;
KL_y = 0;
% Display results
fprintf('Forces in Members:\n');
fprintf('BC: %.2f N (compression)\n', BC_y);
fprintf('CL: %.2f N (tension)\n', CL_y);
fprintf('CK: Zero force member\n');
fprintf('CD: %.2f N (tension)\n', CD_x);
fprintf('KL: Zero force member\n');
fprintf('EF: Zero force member\n');
12 个评论
Torsten
2023-9-14
Works for me. Where do you get a problem ?
habib
2023-9-15
Image Analyst
2023-9-15
@habib If you have any more questions, then tell us what numbers you entered, and the entire error message (ALL THE RED TEXT, not just a snippet from it so we know what line threw the error) after you read this:
habib
2023-9-15
Dyuman Joshi
2023-9-15
As you can see, the code you have posted above runs without any error.
This means that the code you are running on your PC is different.
Post the whole code you are working with.
habib
2023-9-15
habib
2023-9-15
Rik
2023-9-15
That is the beauty of Matlab: the operating system hardly ever matters.
The code you posted will run on any OS. Since the code you are trying to run doesn't, that means there is a difference. Please show the contents of the entire file you are trying to run. Without that, we will be running around in circles. As you can see in the question post itself: your code will run in R2023a. If you edit it and rerun, you can confirm it als runs in R2023b.
Image Analyst
2023-9-15
Line 26 is
fprintf('CK: Zero force member\n');
I see no problem with that or even any mention of N. The entire code runs fine in r2023b (now available for download). Try retyping the line because maybe you have some funky unicode character in there (perhaps even invisible). Attach screenshots if it still doesn't work.
habib
2023-9-17
Walter Roberson
2023-9-17
One of the moderators edited your post to format your code and run it here on MATLAB Answers. Because of that, your Question is now effectively a screen capture of the output of the code as if you had run it as a Livescript.
回答（1 个）
Image Analyst
2023-9-17
0 个投票
"can send screenshots of code running that would be helpful".
It runs fine in r2023a and r2023b (see below). Now it's your turn to attach screenshots.
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2023-9-17
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