MATLAB: How to multiply 2 variables without losing precision

high precisionMATLABsimple math

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?

Best Answer

You can check that a*b and 5468.7 are not equal

a*b==5468.7

Now try this

format long
c=a*b

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a= 1;
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f = exp(-a.*x).*sin(b.*x)
plot(x,f)

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MATLAB: How to avoid the loss of the last digit (it gives a zero instead of a one)

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