Out of memory. The likely cause is an infinite recursion within the program.

Question

Sean St Cyr 2020-7-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/557929-out-of-memory-the-likely-cause-is-an-infinite-recursion-within-the-program

编辑： Cris LaPierre 2020-7-2

%% Variables
% Input
%   a
%   b    the corresponding coefficients in the quadratic equation
%   c
 
% Output
%   x1   positive root of the equation
%   x2   negative root of the equation
% Write your entire function code below here (Including header)
function [x1, x2] = RQ16_19(a,b,c) % The order of input variables should be a, b, and then c
x1 = (-b+sqrt(b^2-4*a*c))/(2*a);
x2 = (-b-sqrt(b^2-4*a*c))/(2*a);
RQ16_19(10,5,3)
end

I am trying to run this code in Matlab Grader and it keeps gigiving me that 'Out of memory' error? Can someone please help?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Gaurav Aggarwal 2020-7-2

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/557929-out-of-memory-the-likely-cause-is-an-infinite-recursion-within-the-program#answer_459814

在 MATLAB Online 中打开

Hi Sean,

RQ16_19(10,5,3)

The above function call is causing the problem. Consider one call to RQ16_19 with some parameters say a,b,c. The following chain of instructions will happen,

call RQ16_19(a,b,c)
calculate x1 and x2 for a,b,c
call RQ16_19(10,5,3)
calculate x1 and x2 for 10,5,3
call RQ16_19(10,5,3)
Repeats.

You see the infinite recursion here?

As per my understanding, you are trying to find roots of a quadratic equation, you wouldn't need the function call within the function. Just remove the above line of code, and then RQ16_19 should be able to work perfectly fine.

Hope this helps. Thanks.