lange 0.2101.8

Haskell-like intervals for Python

lange

Lazy lists (i.e. Haskell-like ranges) for Python.

Features

• Stable floating-point range generation, e.g.: 0.8 - 0.6 == 0.2 up to 28 digits (customizable).

Examples

Arithmetic Progression

# Forbidden syntax.
from lange import *
print(-[0.6, 0.8, ..., 2])
# [0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0]

# Conservative syntax.
from lange_ import a_
print(a_[0.6, 0.8, ..., 2])
# [0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0]

pr = a_[0.6, 0.8, ...]
print(pr[:5])
# [0.6 0.8 1.0 1.2 1.4]

Geometric Progression

# Forbidden syntax.
from lange import *
print(~[0.6, 0.8, ..., 2])
# [0.6 0.8 1.0666666666666667 1.4222222222222223 1.8962962962962964]

# Conservative syntax.
from lange_ import g_
print(g_[0.6, 0.8, ..., 2])
# [0.6 0.8 1.0666666666666667 1.4222222222222223 1.8962962962962964]

pr = g_[0.6, 0.8, ...]
print(pr[:5])
# [0.6 0.8 1.0666666666666667 1.4222222222222223 1.8962962962962964]