# -*- coding: utf-8 -*-
# mathtoolspy
# -----------
# A fast, efficient Python library for mathematically operations, like
# integration, solver, distributions and other useful functions.
#
# Author: sonntagsgesicht, based on a fork of Deutsche Postbank [pbrisk]
# Version: 0.3, copyright Wednesday, 18 September 2019
# Website: https://github.com/sonntagsgesicht/mathtoolspy
# License: Apache License 2.0 (see LICENSE file)
[docs]def interpolation_linear(x, x1, x2, y1, y2):
"""
Linear interpolation
returns (y2 - y1) / (x2 - x1) * (x - x1) + y1
"""
m = (y2 - y1) / (x2 - x1)
t = (x - x1)
return m * t + y1