Class EDU.emporia.mathtools.Parser

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Class EDU.emporia.mathtools.Parser

Object
   |
   +----EDU.emporia.mathtools.Parser

public class Parser
extends Object

Parses strings representing mathematical formulas with variables. The following operators, in descending order of precedence, are defined:

^ (raise to a power)
* /
Unary minus (-x)
+ -

^ associates right-to-left; other operators associate left-to-right.

These functions are defined: abs, acos, asin, atan, ceil, cos, exp, floor, log, round, sin, sqrt, tan. Each requires one argument enclosed in parentheses.

Whitespace outside identifiers is ignored.

The syntax-error messages aren't very informative, unfortunately. IWBNI it indicated where in the input string the parse failed, but that'd be kind of a pain since our scanner is a StreamTokenizer. A hook for that info should've been built into StreamTokenizer.

Examples:

cos(x^2) + sin(x^2)

EDU.emporia.mathtools.Parser()

parse(String)

Parser

public Parser()

parse

public static EDU.emporia.mathtools.Expr parse(String input) throws Syntax_error

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