Clear Filters
Clear Filters

How I can multiply 2 variables without losing precision

3 views (last 30 days)
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 Comment
John D'Errico
John D'Errico on 4 Jul 2014
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.

Sign in to comment.

Accepted Answer

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

More Answers (1)

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

Products

Community Treasure Hunt

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

Start Hunting!