# Linear interpolation between two known points

## Description

In mathematics, linear interpolation is a method of curve fitting using linear polynomials. If the two known points are given by the coordinates (x_0,y_0) and (x_1,y_1), the linear interpolant is the straight line between these points. For a value x in the interval (x_0, x_1), the value y along the straight line is given from the equation. interx1), the value y along the straight line is given from an equation knowing as “Linear interpolation between two known points”

Related formulas## Variables

y | y-coordinate or ordinate of the unknown point (dimensionless) |

y0 | y-coordinate or ordinate of the first known point (dimensionless) |

y1 | y-coordinate or ordinate of the second known point (dimensionless) |

x | x-coordinate or abscissa of the unknown point (dimensionless) |

x0 | x-coordinate or abscissa of the first known point (dimensionless) |

x1 | x-coordinate or abscissa of the second known point (dimensionless) |