OverflowError: (34, 'Result too large') calculate e^-(b*dE)

Question

I want to calculate boltzmann distribution which is e**-(b*dE). b is 1/kT where k is boltzmann constant and T is temperature. dE is delta energy.

I use from scipy.constants import k to get the value of k and import math to get the value of e. dE and T are integer.

Is there any library that can import to get the value of e^-(b*dE) easily?

can you post an example of `b` and `dE`? It "works" for me here: https://repl.it/repls/LeanBlindBusinesssoftware — Netwave, May 08 '19 at 10:03
Possible duplicate of [OverflowError: (34, 'Result too large')](https://stackoverflow.com/questions/20201706/overflowerror-34-result-too-large) — wovano, May 08 '19 at 21:51
Can you provide example input (values for `dE` and `T`) that causes this error? What is the expected result for these input values? — wovano, May 08 '19 at 22:04

score 0 · Answer 1 · answered May 08 '19 at 07:19

0

You should not use the ^ (xor) operator, but ** (pow):

e**-(b*dE)

Or:

import math
math.exp(-(b*dE))

answered May 08 '19 at 07:19

Netwave

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OverflowError: (34, 'Result too large') calculate e^-(b*dE)

1 Answers1