How to apply a function on a number which is in 'sym' format?

1 次查看（过去 30 天）
Ammy
Ammy 2022-2-21
回答： Walter Roberson 2022-2-21
p = sym('2')^100 - 15;
results = p_inverse(p-1, p);
where the function p_inverse is defined as;
function ia = p_inverse(a, p)
[~,ia] = gcd(a,p);
end
How can I find p_inverse for such p as defined above?

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2022-2-21
Ran in:
p = sym('2')^100 - 15;
results = p_inverse(p-1, p)
results = 
1267650600228229401496703205360
mod(results * (p-1),p)
ans = 
1
function inv = p_inverse(a, p)
[~, ia] = gcd(a,p);
inv = mod(ia, p);
end

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Symbolic Math Toolbox 的更多信息

标签

产品


版本

R2013a

Community Treasure Hunt

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

Start Hunting!

Translated by