# Linear interpolation graph

> Piecewise linear interpolation: segment formula, graph and image export

Canonical page: [https://chrome-stats.com/d/com.tamandro.linearInterpolation](https://chrome-stats.com/d/com.tamandro.linearInterpolation)

## Overview

- **ID:** `com.tamandro.linearInterpolation`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** tamandro
- **Category:** EDUCATION
- **Downloads:** 40
- **Version:** 2.1.2
- **Last updated:** 2026-05-15
- **First published:** 2026-05-15
- **Publisher country:** MA
- **Size:** 21 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.tamandro.linearInterpolation)
- **Privacy policy:** [https://docs.google.com/document/d/1fPkAgQ28B8FPl8h-zCrM2vfAGndkg03b5kbwFogbIMk/edit?tab=t.0](https://docs.google.com/document/d/1fPkAgQ28B8FPl8h-zCrM2vfAGndkg03b5kbwFogbIMk/edit?tab=t.0)

## Description

This app computes piecewise linear interpolation from your (x, y) points. It shows f(x), the formula of the affine segment in use, and a graph of the interpolated curve.<br><br>Built for numerical analysis and lab work, it makes the method visible: between two knots you get a straight line, not a black box. Outside the data range, extrapolation is constant (first or last point).<br><br>Input<br>Enter the x_data abscissas and y_data ordinates, separated by commas or semicolons, then the x value to interpolate. At least two points are required; the x values must be strictly increasing. Three ready-made examples illustrate a saturating curve, an irregular signal, and a sampled parabola.<br><br>Result<br>After Calculate, you get f(x) to six decimal places and the active-segment formula, of the form f(x) = m·x + b on [xi ; xi+1]. If x lies left or right of the data cloud, the text states constant extrapolation. The numeric result always follows piecewise linear interpolation, including at the edges.<br><br>With exactly three or four points, the app also shows the unique polynomial (expanded form, degree 2 or 3) that passes through all knots. The displayed value follows the polyline, not that global polynomial: this is intentional, so you can compare the broken line with the polynomial.<br><br>Graph and export<br>The chart draws the interpolated polyline, known points in red, and the evaluated point as a black square. You can share the image (messaging, email) or save it to the gallery for a report or slides.<br><br>Audience<br>Students, teachers, and anyone who wants to see linear interpolation on a phone: piecewise affine functions, undergraduate numerical analysis, a sketch or a live demo in class.<br><br>Created by Tamandro.

## Rankings

- #2,383,795 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.tamandro.linearInterpolation.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Similar extensions and apps

- [Linear Interpolator Calculator](https://chrome-stats.com/d/com.dimitriskatsikas.interpolator) — 340 users
- [Linear Interpolation](https://chrome-stats.com/d/com.engever.juliano.interpolacaolinear) — 30,678 users
- [App Spline for Android](https://chrome-stats.com/d/amazon.eaglepeak.Spline) — 1 users
- [Interpolation Pro](https://chrome-stats.com/d/com.jirocodev.interpolationpro) — 34 users
- [Interpolation & Prediction](https://chrome-stats.com/d/amazon.eaglepeak.Interpolation) — 1 users
- [Linear & Log Interpolator](https://chrome-stats.com/d/com.synergieapps.intepolator) — 1,328 users
- [Interpolation Calculator](https://chrome-stats.com/d/webbusterz.linearinterpolationcal) — 223 users
- [Interpolation Calculator](https://chrome-stats.com/d/com.aldebaran.interpolationCalculator) — 37,608 users, 4.35 / 5
- [Linear Fit](https://chrome-stats.com/d/appinventor.ai_oscar_gomezcalderon.LinearFit_ShaDB) — 2,442 users
- [Lagranji](https://chrome-stats.com/d/com.lagranji.polyinterp)
- [Fitting curve Fit curve points](https://chrome-stats.com/d/com.fittingcurve) — 1,142 users
- [2D-Graphs](https://chrome-stats.com/d/de.kaeseschulsoftware.graphen2d) — 239 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.tamandro.linearInterpolation)