Info

此问题已关闭。 请重新打开它进行编辑或回答。

I need some assistance with my function program?

1 次查看（过去 30 天）
Aaron
Aaron 2012-7-22
关闭： MATLAB Answer Bot 2021-8-20
I'm not sure where my mistakes are. The following is my main program:
a = input('Enter value for side a: ');
if a <= 0
disp('Not a valid input! Side "a" must be greater than zero.');break;
end
b = input('Enter value for side b: ');
if b <= 0
disp('Not a valid input! Side "b" must be greater than zero.');break;
end
c = input('Enter value for side c: ');
if c <= 0
disp('Not a valid input! Side "c" must be greater than zero.');break;
end
if a > b+c
fprintf('\n');
disp('Error: Side "a" must be less than the sum of sides b & c.');break;
elseif b > a+c
fprintf('\n');
disp('Error: Side "b" must be less than the sum of sides a & c.');break;
elseif c > a+b
fprintf('\n');
disp('Error: Side "c" must be less than the sum of sides a & b.');break;
end
fprintf('\n');
[Angle_A,Angle_B,Angle_C] = angle_calc(a,b,c) % This is the correct name of my function program
My function program is:
function [law_cosines] = angle_calc (side_A,side_B,side_C)
angle_A = acosd((b^2+c^2-a^2)/(2*b*c));
angle_B = acosd((a^2+c^2-b^2)/(2*a*c));
angle_C = acosd((a^2+b^2-c^2)/(2*a*b));

此问题已关闭。

回答（2 个）

Image Analyst
Image Analyst 2012-7-22
Your "function program" needs to look like this:
function [angle_A, angle_B, angle_C] = angle_calc (a, b, c)
angle_A = acosd((b^2+c^2-a^2)/(2*b*c));
angle_B = acosd((a^2+c^2-b^2)/(2*a*c));
angle_C = acosd((a^2+b^2-c^2)/(2*a*b));
Walter Roberson
Walter Roberson 2012-7-22
Your line
function [law_cosines] = angle_calc (side_A,side_B,side_C)
should be
function [angle_A, angle_B, angle_C] = angle_calc (side_A,side_B,side_C)
  10 个评论
显示 8更早的评论
Image Analyst
Image Analyst 2012-7-22
Well because he didn't list the actual error (like Jan noted) I actually had to copy and paste, fix it up a little, and run it to find out the error. This should have been discovered immediately by Aaron, particularly if he knew how to use the debugger (which is always faster than debugging via Answers postings).
Aaron
Aaron 2012-7-22
Thank you all for your input. I am fairly new to Matlab so I will do my best to learn how to use the debugger.

此问题已关闭。

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by