清空筛选条件
清空筛选条件

Stopping my function from doing iteration (infinite while loop)

1 次查看（过去 30 天）
A K
A K 2012-12-21
After achieving the desired result the loop continues, how can i stop this? if truefunction y = mysqrt(x,y0,tol) % this function calculates the square root of a number x as y given the % less appropriate guess y0. The function ceases to iterate when the the % difference between y0 and y is less than 1e-3.
y = (y0 + (x/y0))/2;
y = (y + (x/y))/2;
while abs(y-y0)>tol
y = (y + (x/y))/2
end

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2012-12-21
编辑：Azzi Abdelmalek 2012-12-21
function y = mysqrt(x,y0,tol)
y = (y0 + (x/y0))/2;
y = (y + (x/y))/2;
while abs(y^2-x)>tol
y = (y + (x/y))/2
end
  5 个评论
显示 3更早的评论
A K
A K 2012-12-21
No, i mean by setting that as the condition. Is it possible?

请先登录，再进行评论。

更多回答（1 个）

John Petersen
John Petersen 2012-12-21
编辑：John Petersen 2012-12-21
function y = mysqrt(x,y0,tol)
y = (y0 + (x/y0))/2;
while abs(y-y0)>tol
y0 = y;
y = (y + (x/y))/2;
end
Now I see Azzi's answer which is better because it tests against the desired result.

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 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