Don't know how to put set of numbers in equation

Question

David 2023-11-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042547-don-t-know-how-to-put-set-of-numbers-in-equation

评论： Les Beckham 2023-11-3

采纳的回答： Les Beckham

Hello,

I'm new and I don't know how to put a set of numbers in one equation

fi = [0 3 13 23 33 34 43 53 63 73 83 90]

My equation:

N = a / (sqrt(1-e2 * sin(fi)^2))^3/2

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Les Beckham 2023-11-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042547-don-t-know-how-to-put-set-of-numbers-in-equation#answer_1346277

编辑：Les Beckham 2023-11-3

在 MATLAB Online 中打开

a = 1; % made up values - replace with the real ones

e2 = 0.1;

fi = [0 3 13 23 33 34 43 53 63 73 83 90];

N = a ./ (sqrt(1-e2 * sin(fi).^2)).^3/2;

% ^ ^ ^--- change these to element-wise operators

plot(fi, N)

grid on

xlabel 'fi'

ylabel 'N'

In case you meant 1e-2 instead of 1-e2:

N2 = a ./ (sqrt(1e-2 * sin(fi).^2)).^3/2;

figure

plot(fi, N2)

grid on

xlabel 'fi'

ylabel 'N2'

3 个评论
显示 1更早的评论隐藏 1更早的评论

David 2023-11-3

I will check out the tutorial, thank you so much for help

Les Beckham 2023-11-3

You are quite welcome. Please click the "Accept this answer" button on the answer that best helps with your question. You can also click the Vote button on any answer to show appreciation.

请先登录，再进行评论。

Answer 2

Dyuman Joshi 2023-11-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042547-don-t-know-how-to-put-set-of-numbers-in-equation#answer_1346292

在 MATLAB Online 中打开

As you have not specified the values of a and e2, I am assuming random scalar values for them.

Use array operations - Array vs Matrix Operations

fi = [0 3 13 23 33 34 43 53 63 73 83 90]
%Random value between 0 and 1
a = rand;
e2 = rand;
%    vv                    vv   vv
N = a./(sqrt(1-e2 * sin(fi).^2)).^3/2