Formula Calculator

We designed this calculator specifically for Mac OS X to evaluate simple or complex mathematical expressions, to display all results as text or graphs, to keep track of previous results, to save and reload previous calculations, and more. This calculator is ideal for people who need to evaluate mathematical expressions, such as students, teachers, educators, engineers, researchers and scientists. It was developed by a scientist for modelling and analysing data, but designed for ease of use.

Why use Formula Calculator?

Formula Calculator does not imitate a pocket calculator - instead the mathematical expressions are typed in directly. The results are evaluated as you type. The entire mathematical expressions are there to see, making it easier to spot mistakes.

Very long calculations can be broken into smaller calculations. You assign parameter names to intermediate results, just as you would in algebra or arithmetic. Formula Calculator keeps a history of your work, so you can check previous results. Multiple versions of the calculator can be open at any one time.

Formula Calculator comes with the mathematical functions that you find on a scientific calculator and you can define your own functions, simply by typing them in and edit them again at any time. More advanced functions enable numerical differentiation, integration, finding complex roots (zeroes) of functions, Fourier transforms, fitting functions to data. You can define your own constants and save them for use in any arithmetic expression - this is very useful for constants that you use often, such as the gas constant, Avogadros number, Plancks constant, and so on. Formula Calculator has a list of common physical constants that you can send to your calculation.

Formula calculator allows you to easily graph your functions, ideal for students who want to understand what functions look like and how they behave when parameters are varied. You can format the graphs how you like, including labels and colors and output them as images, pdf files or in eps format for inclusion in reports.

Formula Calculator with full graphing capability is also available for iPhone and iPad. Visit the appscience web page for details.