How I can multiply 2 variables without losing precision
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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
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.
采纳的回答
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
2014-7-4
Try this:
a= 378979003;
b= 1.443e-5;
format long
a*b
ans =
5.468667013290000e+03
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