Formula Calculator at a glance 



Formula calculator enables you to evaluate simple or complex arithmetic expressions with ease. Unlike the traditional "pocket calculator" application, formula calculator allows you to type your complete arithmetical expression, which it then evaluates. You view all the numbers and mathematical operations at once, making it easy to spot mistakes. 

Single line mode is ideal for performing simple operations between numbers and getting your answer quickly. 

Single line mode 

Your answers appear here 

Press the disclosure button to view your calculation history 

Type your expression here and press the return (enter) key to evaluate them 

Set the number of decimal places and the number format (floating point, scientific or integer) 

In multiline mode you separate your complex mathematical expressions into simple components. You assign a name to the result of each evaluation, as you would when doing algebra. You can then use that name in subsequent mathematical expressions. As you type each line, formula calculator shows all the results. Drag the divider line down to increase the size of the results field and drag the bottom of the window to increase the size of the math input field. 

Press the button to toggle between Single line and Multiline modes 

Drag the divider down to increase the size of the results field. 

Here we perfomed a calculation with the result called y, created a function called f (x), then used y and the new function to calculate myAnswer. 

Drag the window to increase the size of the math input field. 

Press the 'e' (error) button to highlight errors in the math input where they occur. 

Press the lock button to inhibit calculations when you type  this is useful when the calculations take a long time ... 

Themes: Formula calculator has bulitin themes to tailor its appearance. You can find these under the View menu in the main menu bar. You can also create your own themes using the tool in the Preferences panel. 

Formula calculator has a large number of builtin functions as you would find on a scientific calculator as well as functions for numerical integration and differentiation. Formula calculator allows complex numbers and will perform complex calculations. View available functions and constants, by pressing the Functions or Constants buttons. Selecting a function or constant name shows a description of it. You can view these either as lists or as calculator keys. These are set using the option under the View menu. 

Available functions shown as a list or as a keypad ... 

Create your own functions, simply by typing them in. In singleline mode formula calculator recognises the new function and asks if you want to keep it. Then you can use the function whenever you like. In multiline mode the function exists as long as it remains in the input text field. You can view your functions in the functions list  type a description of it there and choose whether or not to keep it for next time. 

Constants: If you often use a particular number, formula calculator allows you to give it a name, type a description of it and save it for next time. Select Constants from the tool bar, navigate to User and select new. Formula calculator has two inbuilt constants  pi and i (the square root of 1). Save and reload your calculations: You can save your calculations from the File menu, as well as read them in again. Preferences: You modify the behaviour and look of formula calculator from the Preferences panel found under Formula Calculator>Preferences in the main menu bar. 
