# fxPad — Graphic Calculator

> Graphic calculator for plotting and analyzing mathematical functions. (iPhone/iPad app by JUAN CARLOS ESPANA GALVAN.)

- Source: https://appshunter.io/ios/app/fxpad/id326085000 (this page in markdown: same URL + `.md`)
- Developer: [JUAN CARLOS ESPANA GALVAN](https://appshunter.io/developer/326085003)
- Category: Education, Utilities
- Price: $0.99
- Rating: 2.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 10.2 · 2 MB
- Languages: English
- Released: 2009-08-12
- Data updated: 2026-06-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fxpad/id326085000/reviews.md

## What is fxPad?

⊳ Plots unlimited number of functions on the same graph.
⊳ Automatically finds coordinates of roots, intersections and local extremums by double-tapping over the desired point.
⊳ Plots polar, cartesian, and parameterized curves.
⊳ Classic calculator mode, to perform manual calculations in addition to the function graphing mode.
⊳ Real-time zooming and panning using finger gestures.
⊳ Familiar scientific keyboard.
⊳ History of the last 20 functions.

FxPad is a powerful calculator for students or math teachers who need to graph and analyze functions. With fxPad you can quickly draw the curves of mathematical functions and easily obtain the coordinates of interesting points, such as intersections, zeros, minimums and maximums.

TYPICAL USES
 - Find polynomial roots, or solve equations like f(x) = 0
 - Find local minimum & maximum
 - Find intersections between several functions or solve equations like f(x) = g(x)

FxPad was mentionned in the National Council of Supervisors of Mathematics's newsletter (Spring 2010) :  http://www.mathedleadership.org

FxPad's intuitive user interface makes it useful straight from the beginning. No slow learning curve is needed before starting to plot your first function and locate interesting function points.

All the following classic functions are available:
  abs, acos, acosh, asin, asinh, atan, atanh, cos, cosh, exp, rnd, ln, log, sign, sin, sinh, square root, tan, tanh

## Key features

- Plots unlimited functions
- Identifies roots, intersections, extrema
- Supports polar, cartesian, parameterized curves
- Classic calculator mode
- Real-time zooming and panning
- Scientific keyboard
- Function history


## Frequently asked questions about fxPad

### What kind of functions can fxPad plot?

fxPad can plot an unlimited number of functions, including polar, cartesian, and parameterized curves. It supports classic functions like abs, cos, sin, tan, and their hyperbolic counterparts, as well as logarithmic and exponential functions.

### How does fxPad help find important points on a graph?

You can automatically find coordinates of roots, intersections, and local extremums by double-tapping over the desired point on the graph. This makes analyzing function behavior quick and efficient.

### Does fxPad have a classic calculator mode?

Yes, fxPad includes a classic calculator mode that allows you to perform manual calculations alongside its function graphing capabilities. This provides a comprehensive tool for various mathematical tasks.

### Is fxPad easy to use for beginners?

fxPad features an intuitive user interface that makes it useful straight from the beginning. There is no slow learning curve, allowing users to start plotting functions and locating interesting points immediately.

### What devices is fxPad compatible with?

fxPad is supported on iPhone, iPad, and iPod devices. It is designed to provide a seamless experience across Apple's mobile ecosystem.

### How often is fxPad updated?

The latest version of fxPad is 2.14, which was last updated on August 23, 2021. While updates may not be frequent, the app has been stable since its release in 2009.

### What is the price of fxPad?

fxPad is available for a one-time purchase of $0.99. This makes it an affordable tool for students and educators.

### Does fxPad have ads?

No, fxPad does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused solely on its mathematical functionalities.

## Version history (last 5 releases)

### 2.14 — 2021-08-23

Updated to latest iOS

### 2.13 — 2018-04-28

This app has been updated by Apple to display the Apple Watch app icon.

- Added paramaterized curves

### 2.12 — 2018-04-22

- Keyboard now has auto-repeating keys.

### 2.11 — 2018-04-19

- Legend now shows different colors for multiple function plots.

### 2.10 — 2018-04-17

- Value of dy/dx is shown and the tangent is drawn at the selected point.

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## More apps by JUAN CARLOS ESPANA GALVAN

- [GaussPad](https://appshunter.io/ios/app/gausspad/id345292658)
- [fxIntegrator](https://appshunter.io/ios/app/fxintegrator/id375694881)

All apps by JUAN CARLOS ESPANA GALVAN: https://appshunter.io/developer/326085003

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*