write a function called tri_area returns the area of a triangle with base b and height h
269 ビュー (過去 30 日間)
表示 古いコメント
hello this is my function code and command window code and there is a message of invalid expression at line 2 and i dont know what is the wrong can anyone help me
function [area] = tri_area([b,h]);
tri_area([b,h])=(0.5)*(b)*(h)
area=tri_area([b,h])
end
%command window
area = tri_area[3,2])
16 件のコメント
採用された回答
Torsten
2020 年 4 月 9 日
編集済み: darova
2020 年 4 月 9 日
function area = tri_area(b,h)
area = 0.5*b*h;
end
From the command window
A = tri_area(3,2)
21 件のコメント
Walter Roberson
2022 年 12 月 26 日
When you use the debugger and format long g then what are some sample inputs, and what is the calculated output, and what does the grading program say that the output should be?
その他の回答 (3 件)
Siya Desai
2021 年 4 月 4 日
編集済み: Siya Desai
2021 年 4 月 4 日
function
function [area] = tri_area (b,h)
tri_area = (0.5)*(b)*(h)
code to call your function
tri_area(2,3) %any random input
1 件のコメント
Walter Roberson
2021 年 4 月 4 日
result = tri_area(2,3) %any random input
function [area] = tri_area (b,h)
tri_area = (0.5)*(b)*(h)
end
Pelden Chodon
2021 年 5 月 27 日
function [area, tri_area] = tri_area(b,h) ;
area = (0.5)*(b)*(h);
v = area(:);
tri_area = sum(v);
end
% Test that your function runs as expected before pressing Submit
[area, tri_area] = tri_area(2,3)
1 件のコメント
DGM
2023 年 2 月 4 日
You're declaring a variable with the same name as the function you're calling. This will either throw an error or silently cause other errors, depending on where you put the function.
For scalar inputs, summing area serves no purpose. For nonscalar inputs, the results are either wrong, or will throw an error.
% summing a scalar accomplishes nothing
[allareas totalarea] = tri_area(2,3)
% some nonscalar inputs return the wrong results
[allareas totalarea] = tri_area([2 2; 2 2],[3 3; 3 3])
% some nonscalar inputs return the wrong number of wrong results
[allareas totalarea] = tri_area([2 2],[3;3])
% some nonscalar inputs fail completely
[allareas totalarea] = tri_area([2 2],[3 3])
function [allareas, totalarea] = tri_area(b,h)
allareas = (0.5)*(b)*(h); % these parentheses don't do anything
v = allareas(:);
totalarea = sum(v);
end
As this is all largely copy-pasted from other bad answers posted above, I should point out that much of these problems were already openly explained before you posted this. See also: function, array vs matrix operations
参考
カテゴリ
Find more on Biotech and Pharmaceutical in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!