prompt for variables in an equation

8 次查看（过去 30 天）
Ken
Ken 2012-2-25
评论： Walter Roberson 2019-5-23
Hello,
I am new here and to Matlab so here is my question. How do I promp a user for variables in an equation and after the answer is given to loop back again in order to enter new variable?
example:
promp for r
promp for h
r^2*acos((r-h)/r)-(r-h) * sqrt(2*r*h-h^2)
answer =
Loop

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2012-2-26
while true
r = input('How about sending an r value over this way?');
h = input('Groovy. Got a spare h value too?');
r^2*acos((r-h)/r)-(r-h) * sqrt(2*r*h-h^2)
end
  3 个评论
显示 1更早的评论
Daniel Bramhall
Daniel Bramhall 2019-5-22
How do you break the loop when you get an answer?
Walter Roberson
Walter Roberson 2019-5-23
while true
r = input('How about sending an r value over this way?');
if isscalar(r) && isnumeric(r); break; end
end
while true
h = input('Groovy. Got a spare h value too?');
if isscalar(h) && isnumeric(h); break; end
end
disp( r^2*acos((r-h)/r)-(r-h) * sqrt(2*r*h-h^2) )

请先登录，再进行评论。

更多回答（1 个）

Panagiotis Panos Katranitsas
Hi Ken,
i think the instruction input is what you need.
ex.
reply = input('Do you want more? Y/N [Y]: ', 's');
if isempty(reply)
reply = 'Y';
end
  3 个评论
显示 1更早的评论
Walter Roberson
Walter Roberson 2012-2-26
At the point you have written "promp for r" and "promp for h"
Walter Roberson
Walter Roberson 2012-2-26
Please do not send clarifying questions in email: post them as comments.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Logical 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