algebraic expression
Expression 1.3.5
Expression allows you to create, modify, extract, and otherwise toy with Sound Sets for both Outlook Express and Entourage more>> Expression allows you to create, modify, extract, and otherwise toy with Sound Sets for both Outlook Express and Entourage.
MacOS 8.5 or later, 2 MB RAM, Outlook Express 5.x or Entourage.
Expression Evaluator 1.0
Expression Evaluator - REALbasic classes for evaluating mathematical expressions more>>
Main features:
- Supports freeform expressions
- Follows standard order of operations
- Many built-in functions
- Support for variables.
mmcalcService 0.2
mmcalcService is a potential and easy to use tool which is a Mac OS X Service, and can be used in any native Mac OS X application. more>> mmcalcService 0.2 is a potential and easy to use tool which is a Mac OS X Service, and can be used in any native Mac OS X application. To use it, you select text and go to the "Calculate Expression" service in the "Services" menu of the Application menu. The selected text will be replaced with the result of the calculation.
Requirements: Mac OS X 10.2 or later.
EvalService 1.2.1.0
EvalService - Evaluate any selected string as a math expression more>>
After downloading and uncompressing, drop the EvalService file into your ~/Library/Services folder and relogin. You will then be able to select a string in any application and by using the Application->Services->Evaluate Expression menu, exaluate the expression.
Example expressions
54/34
16*(4.2/(2000-453.3))
ceil(sin(23+34)+cos(1.24)^2)
Supported functions
abs cos acos sin asin tan atan atan2 deg rad
log log10 sqrt frexp ldexp
ceil floor max min mod
random randomseed
See the Manual for more details.
RegExplorer 1.0
RegExplorer is a simple utility for testing regular expressions and is based on the built-in QRegExp functionality provided with Qt (http://www.trolltech.com). more>>
Using RegExplorer, the user can type in his or hers favorite regular expression and the program will validate it and highlight matching patterns in a text sample. Previous expressions are stored and can be retrieved from the combobox and the number of matches found is shown in the status bar.
Key Features:
- Evaluate and validate the regular expression as you type.
- Matching patterns will be highlighted (colored blue) in text sample.
- Matching subexpressions (groups) will be underlined in text sample.
Irssix 0.2
Fast IRC chat client. more>>
This beta version does not have all GUI dialog boxes implemented yet, so it may be difficult for the user who has never used IRC before. Irssix is based on the code from the fabulous unix IRC client Irssi.
PlainCalc X 2.0.1
PlainCalc X - Algebraic-entry, mathematical calculator with variables more>>
The world may not have needed yet another calculator, but I wrote this while playing with the Spirit parsing library, and maybe some people will find it useful.
To use PlainCalc, type an expression or assignment and press Return or Enter. Unlike most calculators Ive seen, PlainCalc allows you to indicate multiplication by juxtaposition, e.g., you can write 2?r instead of 2*?*r.
BatchRenamer 0.86
BatchRenamer - File renaming & numbering w/regular expression more>>
Enhancements:
- Table column header didnt highlight properly after a purge/add.
- Sorting is now maintained after files are added.
- The file listing is now unsorted after purging.
- Fixed some minor memory leaks.
- Use Cocoa instead of Carbon to get file creation date (same results).
GCMathParser
Make mathematical expression available in your applications more>> Make mathematical expression available in your applications
GCMathParser is a free class that you can use in applications that need a way to deal with mathematical expressions input by the user.
GCMathParser accepts an NSString consisting of a well-formed mathematical expression, evaluates it, and returns the result. It supports arbitrary named variables, so it is also perfect for graph plotting applications.
Supported functions and operators:
- Basic operators: +, -, * (multiply) and / (divide)
- Mod operator: %
- Exponentiation operator: ^
- Negation: unary -
- Assignment: =
- Log functions: log(), log2(), ln(), exp()
- Transcendental functions: sin(), cos(), tan(), asin(), acos(), atan(), sinh(), cosh(), tanh(), asinh(), acosh(), atanh()
- Square root function: sqrt()
- Rounding functions: ceil(), floor(), round(), trunc(), rint(), near()
- Angular conversion functions: dtor(), rtod()
- Absolute value function: abs()
- Constants: pi
System requirements:
- Xcode
Mathomatic 14.4.5
Portable, general purpose CAS (Computer Algebra System) written entirely in the C programming language more>> Portable, general purpose CAS (Computer Algebra System) written entirely in the C programming language
Mathomatic is a free software, published under the GNU Lesser General Public License (LGPL version 2.1). This is a console mode application that does quick calculations and symbolic math.
Mathomatic is designed to be as general and easy to use as possible, and as such, has no programming capability.
Mathomatic implements most of the rules of algebra for subtraction (-), addition ( ), modulo division (%), multiplication (*), division (/), and all forms of exponentiation (^). All arithmetic is double precision floating point with up to 14 decimal digit
Mathomatic compiles and runs under any operating system with a C compiler, especially GNU/Linux. There are no dependencies other than the standard C libraries.
Mathomatic has been under development since 1986 and now stands at 16,000 lines of code (including comments).
Main features:
- combine and solve algebraic equations,
- completely simplify, expand, and compare expressions,
- do calculus transformations (derivative, polynomial integral and Laplace, extrema, and Taylor series),
- help with series analysis (sum and product),
- do standard, complex number, and polynomial arithmetic,
- generate efficient C, Java, and Python code from equations,
- and perform quick calculations, all in color, for easier reading.
Enhancements
- "primes/mult" improved and renamed to "primes/matho-mult", so you can install as a unique program, if you wish. "primorial 1" works now, too. Roots command enabled in the symbolic math library.
- Fixed factor command parameter handling and results, it was not user friendly. Also fixed factor command for consistent behavior in the symbolic math library.
- Allow separate install of Mathomatic binaries and documentation in makefile.
solve algebraic equations, - completely simplify, expand, and compare expressions, - do ... Use "set no auto" to always store entered expressions into equation spaces, unless it is aLicense:GPL
Base Converter 3.2
Base Converter - Converts integer expressed in one base to expression in another base more>>
Base Converter is a Cocoa Application made using Xcode. It is a Universal application which should run under OS X on either PowerPC or Intel based Macintosh computers. Im unable to test on an Intel Mac, let me know of problems.
Enhancements:
- Version 3.2 now implements a binary-reflected Gray code.
MathRPN 1.0
MathRPN - Complete scientific RPN calculator more>>
Number formatting preferences and stack autosave complement its functionality, as well as the versatile regular expression engine that allows you to evaluate mathematical expressions in any application, via its service, and use user-defined functions and constants directly with the stack.
MathRPN now also includes some graphing support.
HKWebcam 1.1
HKWebcam allows you to see Hong Kong images right from your dashboard. more>> Basic Algebraic Expressions and Algebraic Fractions - AlgeBasics
Algebraic terms, Notations in Algebra, Simplifying Algebraic Expressions, Algebraic Fractions and Indices
Tutorial
Introduces the rules for basic algebra - the multiplication and division of algebraic terms, followed by the concept of addition and subtraction. Teaches the easy way to remove brackets. The methods can be applied to all sums, both easy and complicated ones, unlike some methods which are only suitable for simple sums.
Simple mental exercises at the end of each session help to strengthen the concepts learnt.
It also teaches addition, subtraction, multiplication and division of algebraic fractions and indices.
Practice
AlgeBasics is capable of generating thousands of sums on algebraic expressions, algebraic fractions or indices for drills to ensure that the student masters these very important basic skills in algebra.
Algebraic Expressions
It includes sums on addition and subtraction, multiplication and division, order of calculations, removal of brackets and simple indices such as 2b2 x 5c x 3b.
The sums get progressively more difficult if a student is doing well. If a student is doing badly, the numbers will be kept simple to let him focus on the concepts.
Algebraic Fractions
Includes addition, subtraction, multiplication and division of algebraic fractions. Simplifying algebraic fractions by cancelling and removal of brackets.
Indices
Includes addition, subtraction and multiplication of positive indices and miscellaneous sums requiring a combination of these methods.
Worked Examples
More than 150 worked examples provide help for students who have difficulty in doing the sums.
Reports
You can print out a report at the end of each practice session. The report shows each sum with its correct answer and the students answer marked. It also includes the percentage score, the average time taken to do each sum and other details.<<less
LiveCalc 2.1
LiveCalc - Interactive realtime calculation tool more>>
LiveCalc works beyond the usual range of numbers.
Enhancements:
- Rewritten in Objective-C and Cocoa.
- Improved Error-indication
- Multiple Windows
- Much faster
- New Help
- New Icon.
LiveCalc offers a concise, amazing, easy-to-use tool to calculate an expression, while you ... concise, amazing, easy-to-use tool to calculate an expression, while you are typing it. So youLicense:Freeware
iCount 1.2.1
iCount - desktop calculator performs regular, scientific or statistical functions more>>
Its lightyears beyond that handy but old Mac desk accessory calculator.
iCount can perform regular, scientific or statistical functions. It is a multi-function desktop calculator that is also an expression parser.
Unlike other desktop calculators, iCount doesnt emulate a normal hand calculator. Instead it has a simple editor that lets the user type an expression and returns a result simply by pressing the return key. iCount supports: drag and drop text editing; 4 modes of operation; 27 built-in functions and up to 50 user defined functions; on-line help and much more.
