Custom Formulas

Custom Formulas$1.19

Rated 4.45/5 (11) —  Free Android application by BinaryEarth

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About Custom Formulas

This powerful app lets you create your own custom formulas and then perform computations using them by prompting you for the input values.

This app is easy to use, but unlike simpler apps, multiple entered values can be fed into multiple formulas and multiple output values can be displayed. The output of one formula in a group can be fed into the next by using the same variable name.

Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc.

The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields.

Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.

A formula group can be exported to a text file. Other users of the app can then import it, allowing your creations to be shared. An open forum where you can share formulas is available here: https://groups.google.com/forum/#!forum/custom-formulas

Note: Do not use "e" or "pi" as variable names since these are pre-defined constants. This app uses the JFEP library. See the following page for the list of supported functions: http://jfep.sourceforge.net/Syntax.html (Plus int(), round(), ceil(), and floor() have also recently been added).

On-line help for the app is available here: http://www.binaryearth.net/CustomFormulasHelp/

How to Download / Install

Download and install Custom Formulas version 2.2 on your Android device!
Downloaded 100+ times, content rating: Everyone
Android package: binaryearth.customformulas, download Custom Formulas.apk

All Application Badges

Paid
app
Android
2.3+
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
2.2: Made the menu button slightly wider and improved the "About" dialog.
2.1: Added a preferences page with option to enter values with scientific notation e.g. 1.32e-10 (this just shows full keyboard instead of numeric).
2.0: Prevent duplicate input vars being created within a formula group. Make a precision of 0 mean no decimal places.
1.9: Added link to on-line formula sharing formula from main menu.
Version update Custom Formulas was updated to version 2.2
Price update  Price changed from $0.80 to $1.19.
Price update  Price changed from $1.31 to $0.80.
Version update Custom Formulas was updated to version 2.1

What are users saying about Custom Formulas

X70%
by X####:

Works well for EOD blast/Frag calculations

X70%
by X####:

Update keyboard layout....To enter number values we should select numerical keyboard often on each entry ....i want number keyboard to be displayed first

M70%
by M####:

Good app, nice clear interface. I like that it doesn't come loaded with a ton of built-in formulas to scroll past - I only see the stuff I need. One issue, there seems to be no way to input or output variables in scientific notation making it hard to use very small or very large numbers.

B70%
by B####:

I work in an industry that's full of different custom formulas. I wanted an application that I could easily create these formulas and modify as necessary. There are tons of calculators and mathematical applications, but none that could present the data in a simple form until I found this. The developer has been extremely responsive. Excellent!

N70%
by N####:

I really like this app but I wish there was an option to choose a constant from drop down menu. For example I would like to choose a gear ratio to be an input into a formula and not type in long number just choose "gear ratio A" from a drop down list made earlier.

N70%
by N####:

Cool!

K70%
by K####:

Easy to use. Ability to have multiple formulas connected together sets it apart.

Q70%
by Q####:

Very handy but needs more examples or help.


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Rating Distribution

RATING
4.55
11 users

5

4

3

2

1