Help with Function Errors?

Question

Andrew Ardolino 2014-10-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160334-help-with-function-errors

编辑： per isakson 2014-10-28

I have the following 2 functions:

 function hitPond(pondRadius, xhit, yhit)
  %use distance formula to find length between points.
  x=0;
  y=0;
  %because of the axis^
  %we are finding the distance between the axis and the point where it hit
  step1=(xhit-x)^2;
  step2=(yhit-y)^2;
  step3=step1+step2;
  distance=sqrt(step3);
  if (distance<1);
      output_variablePond = 1;
      disp(output_variablePond)
  elseif distance>1;
      output_variableField =0;
      disp(output_variableField)
  end
  end

and

function hitPond(pondRadius, xhit, yhit)
%use distance formula to find length between points.
x=0;
y=0;
%because of the axis^
%we are finding the distance between the axis and the point where it hit
step1=(xhit-x)^2;
step2=(yhit-y)^2;
step3=step1+step2;
distance=sqrt(step3);
if (distance<1);
    output_variablePond = 1;
    disp(output_variablePond)
elseif distance>1;
    output_variableField =0;
    disp(output_variableField)
end
end

when I run them in my driver script, I get errors

Error using hitPond Too many output arguments.

Error in plotShot (line 2) hits=hitPond(pondRadius, xhit, yhit)

Error in monteCarlo (line 22) plotShot(1,0,0)

Can anyone explain to me what I'm doing wrong?

Thanks in advance.

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per isakson 2014-10-28

"I have the following 2 functions:" &nbsp but you show two listings of the same function. Anyhow, I don't see any difference.

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Answer 1

per isakson 2014-10-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160334-help-with-function-errors#answer_156809

编辑：per isakson 2014-10-28

在 MATLAB Online 中打开

"Error in plotShot (line 2) hits=hitPond(pondRadius, xhit, yhit)" &nbsp one output, &nbsp hits &nbsp is expected but there is no output returned by the function

function hitPond(pondRadius, xhit, yhit)

See function, Declare function name, inputs, and outputs

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Andrew Ardolino 2014-10-28

like, I want to make it so that the output from hitPond can be used in a different function to plot it under certain circumstances

per isakson 2014-10-28

编辑：per isakson 2014-10-28

It seems as if the calling function, &nbsp plotShot, &nbsp assumes the function, &nbsp hitPond, &nbsp to calculate and return &nbsp hits. &nbsp However, the listing doesn't show any such calculation and there is no output.

Did you study the examples in the page I linked to?

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