Expresso
Expresso is a simple and useful text editor with calculation capabilities. Expresso allows you to:
➤ calculate math expressions inside Rich Text documents; ➤ assign results to other variables and use those results anywhere in your document or within new expressions; ➤ annotate calculations with text; ➤ place expressions anywhere in text; ➤ organize calculations inside tables like in spreadsheets. Expresso has common math operators and functions available: (+, , *, /, %, !, **) in addition, to the following functions: sum(), count(), min(), max(), median(), stddev(), average(), random(), sqrt(), log(), exp(), ceil(), floor(), sin(), cos(), tan() and others! Please see the help page for more details. Expresso's Simple Features & Rules: ➤ all dependent expressions are calculated automatically ➤ press Enter in any place of an expression or just after the last square bracket to calculate a value ➤ use square brackets [ ] for expressions. For example: [2+2]. ➤ use variables in your expressions. For example: [10*x]. ➤ input the name of a variable before the expression followed by ":". For example: [x:2+2], variable x will have the value 4. ➤ move the cursor or click on an expression to edit ➤ calculations can be saved in RTF format. You can associate a value with a variable such as [x:10*5] and then use the variable in another expression such as [x/52]. When you calculate the variable "x" all dependent expressions are calculated automatically. Advanced features: ➤ ability to calculate expression without using brackets if an expression is on separate line; ➤ ability to hide/show an expression and show only variable and value.
To request a new feature or report about problem in Expresso, simply tweet to us or

