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To download ExpressionsinBar from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By Andre Rubbia

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ExpressionsinBar is a simple menubar application which provides powerful computer-aided algebra computations.

It's the perfect app for teachers, math students, scientists, and the geek among us !

• Unlike most other Equation Editors, ExpressionsinBar helps you resolve the math and then prepares a neat output for an easy insertion in your documents or presentations.

• How to use: Click the Menubar icon and ExpressionsinBar pops open an input expression box. Enter the expression, view the result. With the drag-and-drop feature, results are easily copied into text editors such as Pages or Microsoft Word, or presentation programs such as Keynote or Microsoft PowerPoint. Alternatively export the result of a computation in LaTeX syntax to TeX processors, such as TeXShop or TeXworks.

• Key features:
- Constants (π, e, etc.)
- Integers, fractions, floating numbers
- Sequences, lists, vectors, matrices, strings
- Operators (+, -, *, /, ^)
- Arithmetics on integers, rational, and floating numbers
- Arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers
- Operations on fractions (integer and fractional parts, numerator, denominator, simplification, continued fraction expansion of real)
- Real functions (max, min, round, floor, sign, frac, ceil)
- Complex functions (re, im, abs, conj, arg, affix)
- Polynomials
- Factorial, binomial
- Exponential, logarithms, roots, powers
- Trigonometric functions, hyperbolic functions, and inverses
- Algebraic transformations (simplify, normal form, expand, factor)
- Trigonometric transformations
- Probabilities
- Statistics (1d and 2d)
- Polynomials algebra
- Algebraic calculus
- Numerical calculus
- Derivatives, limits and series expansion, integrals
- Equations, ordinary differential equations

• Extended user interface and keyboard features
- Menu with variables, functions, syntax and tips
- Use keyboard arrows to navigate function arguments
- Easily select to render "input only", "input =", "result" and "input and result"

• Render using LaTeX syntax for fastest type-setting
- "@" feature to interpret input with LaTeX syntax
- Flexible and easy way to format equations
- Use it to write chemical reactions (such as @NaOH+HCl \rightarrow NaCl+H_2O)

• Support for OS X 10.9, 10.8 and 10.7
- OSX 10.6 not supported (contact us)

+++ Thank you to everyone for your cool comments and suggestions ! We are working on each one of them. +++

What's New in Version 0.8

• Services integration - access the powerful tools within other applications, such as Word or Textedit
- Replace Selection by Result
- Replace Selection by Result in LaTeX format
- Replace Selection by Image of Result

• Other Fixes
- Minor bugs

Learn more at


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Customer Reviews

This program is a must buy

I saw the description of this program and thought: What the heck, for $2.99 I will take a chance. Well, instead of being disapointed, I am very happy, as this program does all it claims it will. If you routinely need a CAS calculator and editor, this is the program for you.

View in Mac App Store
  • $2.99
  • Category: Productivity
  • Updated: Jan 14, 2014
  • Version: 0.8
  • Size: 7.3 MB
  • Language: English
  • Seller: Andre Rubbia

Compatibility: OS X 10.7 or later, 64-bit processor

Customer Ratings

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