Add Python solution to challenge 21

1 files changed, 22 insertions, 0 deletions

diff --git a/challenge-021/paulo-custodio/python/ch-1.py b/challenge-021/paulo-custodio/python/ch-1.py
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+++ b/challenge-021/paulo-custodio/python/ch-1.py
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+#!/usr/bin/python3
+
+# Challenge 021
+#
+# Task #1
+# Write a script to calculate the value of e, also known as Euler's number and
+# Napier's constant. Please checkout wiki page for more information.
+
+def calc_e():
+    e = 1
+    n = 0
+    prod = 1
+    prev = 0
+    while prev != e:
+        prev = e
+        n += 1
+        prod *= n
+        e += 1/prod
+
+    return e
+
+print("{:.14f}".format(calc_e()))