Non-functioning function

Question

Jacob Smith 2021-2-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/758114-non-functioning-function

编辑： Jacob Smith 2021-2-27

function output = calculateFactorial(N)
output = N*(N-1);
if (length(N) = N < 1 || N > 1)
    output = 'Error; N must be a single number and not an array';
elseif N < 0
    output = 'Error; N must be greater than Zero';
elseif rem(N,1) ~= 0
    output = 'Error; Intger must be whole number';
elseif N == 0
    output = 1; 
end

struggling with these functions. If i ommit line 2, theres then a mistake on line 3 where there is an incoorrect use of '='. I need help wrapping my head around my mistakes.

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Answer 1

madhan ravi 2021-2-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/758114-non-functioning-function#answer_635094

if length(N) > 1

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madhan ravi 2021-2-27

编辑：madhan ravi 2021-2-27

output = calculateFactorial(1.1)
output = 'Error; Intger must be whole number'
output = calculateFactorial(-1 : 3)
output = 'Error; N must be a single number and not an array'
output = calculateFactorial(-1)
output = 'Error; N must be greater than Zero'
output = calculateFactorial(3)
output = 6
function output = calculateFactorial(N)
output = N .* (N-1);
if length(N) > 1
    output = 'Error; N must be a single number and not an array';
elseif N < 0
    output = 'Error; N must be greater than Zero';
elseif rem(N,1) ~= 0
    output = 'Error; Intger must be whole number';
elseif N == 0
    output = 1; 
end
end

Jacob Smith 2021-2-27

编辑：Jacob Smith 2021-2-27

Ok, I got it figuerd out now, the error is from not having an N value plugged in. *inserts face into palm* Thanks for the help! It feels good to know that i wasnt too far off.

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