DDMathParser

DMathParser makes it easy to parse a String and evaluate it as a mathematical expression.

While NSExpression and GCMathPaser can satisfy simple needs, they are comparatively limited. They do not support some of the key features of DDMathParser, such as:

• accessing intermediate representations
• defining custom functions
• adding custom operators
• adding new ways to recognize existing operators
• overriding built-in functions
• recognizing localized numbers
• associating parsed expressions back to the original source string
• recognizing unicode characters such as ² or ½