CalcPlus X 2.2 (by John McGruer)
CalcPlus X includes a full range of commonly used functions including: Sine; ArcSine; Cosine; ArcCosine; Tangent; ArcTangent; Square; Square root; Power; Natural logarithm; Logarithm base 10; Exponential; Reciprocal; Percentage; Factorial; Pi; Degrees/Radians; Memory plus/minus/recall/clear.

CalcPad X 1.1 (by John McGruer)
CalcPad X is a "word processor" and evaluator for mathematical expressions! CalcPad X lets you type an expression and evaluate it with a single click.

CalcPad X 1.1 (by John McGruer)
CalcPad X is a "word processor" and evaluator for mathematical expressions! CalcPad X lets you type an expression and evaluate it with a single click.

Expression Evaluator 1.0 (by Steve LoBasso)
Expression Evaluator is a set of classes for REALbasic which enables you to evaluate mathematical expressions.

JFormula 3.6 (by JAPISoft)
Formula is a library for evaluating various mathematical expressions.

EvalService 1.2.1.0 (by Steve Dekorte)
EvalService is a MacOSX service that allows you to evaluate a selected string as a mathematical expression from any application.

MathEQ Expression Editor 4.0.6 (by MathMonkeys, LLC)
MathEQ Expression Editor is a mathematical/scientific typesetting program.

Equation Compiler Plugin 3.1 (by Bob Delaney)
Equation Compiler Plugin is a REALbasic plugin which compiles a user entered string containing a mathematical formula into machine language for rapid evaluation.

CalcPad 1.0.1 (by Shiga Univ. Med. Sci.)
Type the formula in the window, then push [enter] or [return].

ABA-X1 1.0 (by Marc Kronberg)
ABA-X1 is a program that calculates mathematical expressions.

Calcline 1.1.1 (by Tension Software)
Calcline is a native Mac OS X utility with a very smart interface that lets you input mathematical expressions and have the result available in a snap.

PlainCalc X 2.0 (by J.W. Walker)
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.

ConvertStuff 1.9 (by Hybrid Bits)
A utility primarily for unit and computer conversions.

MathLink for AppleScript 1.3 (by Uni Software Plus GmbH)
MathLink for AppleScript is a Scripting Addition (OSAX) that makesit possible to use Mathematica as a computational engine in AppleScript programs (Mathematica is a registered trademark of Wolfram Research).

Math Basics 0.1 (by Thinking Cap)
Math Basics is a simple math quiz application.

Boardfoot Calculator 1.2 (by MacWoodworking)
Boardfoot Calculator is an easy to use tool for determining material requirements of both small and large woodworking projects.

SimpleCalc 0.3 (by GBPT)
A very small and simple calculator for quick use and easy to have on the screen.