hello. why neper number in matlab and neper number in wikipedia with address (http://en​.wikipedia​.org/wiki/​E_(mathema​tical_cost​ant)) up to 15 decimal places is the same and than 15 different next? which one is correct?

3 次查看（过去 30 天）
abolfazl rasoolizadeh
回答： John D'Errico 2015-11-21

请先登录，再回答此问题。

采纳的回答

John D'Errico
John D'Errico 2015-11-21
MATLAB uses double precision, so roughly 16 significant digits.
format long g
exp(1)
ans =
2.71828182845905
vpa(exp(sym(1)),100)
ans =
2.718281828459045235360287471352662497757247093699959574966967627724076630353547594571382178525166427

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Elementary Math 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