How can I Write a function that takes as input two numbers, x and y, and outputs √xy if they have the same signs, x y if they have opposite signs, and 0 if either is zero

1 次查看（过去 30 天）
bob
bob 2020-3-9
回答： Image Analyst 2020-3-9
numbers=input('x','s');
if numbers(diff(sign(x(x~=0))))
disp('sqrt(x*y).')
elseif numbers isequal(sign(previous), sign(current))
disp('(x/y).')
elseif numbers~=0
disp('0.')
end
This is the code I tried but I ended up getting an error in the second line. What is going wrong with my code?

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2020-3-9
You need to convert the string you collected from the user into numbers using sscanf(). Try this:
usersInputString = input('Enter x y ', 's')
numbers = sscanf(usersInputString, '%f %f')
x = numbers(1)
y = numbers(2)
if sign(x) == sign(y)
fprintf('sqrt(x*y) = %f\n', sqrt(x*y))
etc.

类别

在 Help Center 和 File Exchange 中查找有关 Create Model Web Views 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by