Recently I had a small problem with Julia that confused me. The code is shown below: Julia> x=2.0e-10 2.0e-10 Julia> -1.0*(-0.5*x^3 - 3.0*x^2 - 7.5*x - 7.5)*exp(-x)/x^6 + 1.0*(0.5*x^3 - 3.0*x^2 + 7.5*x - 7.5)*exp(x)/x^6 0.0 Julia> x=2.1e-10 2.1e-10 Julia> -1.0*(-0.5*x^3 - 3.0*x^2 - 7.5*x - 7.5)…

Numerical precision

lmiq March 30, 2022, 2:44pm 3

4 Likes

Topic		Replies	Views
Difference between f(1.0e-7) & f(1.0e-8) New to Julia question	14	1463	December 30, 2019
Precision issue: (A.+R.-A.-R) do not vanish ?! Performance question	33	1796	July 29, 2018
PSA: floating-point arithmetic Offtopic	14	7556	July 8, 2021
Unexpected result about integer General Usage	13	1384	August 17, 2018
Accuracy of BigFloat - Calculating sin with high accuracy Numerics	8	5226	September 7, 2017