How I can multiply 2 variables without losing precision

4 次查看（过去 30 天）
Yuriy
Yuriy 2014-7-4
评论： John D'Errico 2014-7-4
a= 378979003;
b= 1.443e-5;
The result of a*b is 5468.7 but I'm very interested in higher precision (such as 5468.6670). How to achieve those precision?
  1 个评论
John D'Errico
John D'Errico 2014-7-4
The point of both answers is that MATLAB never did "lose" any precision. You did not see those extra digits because of the wrong format for your goals.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2014-7-4
You can check that a*b and 5468.7 are not equal
a*b==5468.7
Now try this
format long
c=a*b

更多回答（1 个）

Ben11
Ben11 2014-7-4
Try this:
a= 378979003;
b= 1.443e-5;
format long
a*b
ans =
5.468667013290000e+03

类别

在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by