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‎LATEST.md‎

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# ParserNG
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### Parser 1.1.4 has been released on maven-central!
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Version 1.1.4 squashes a bug where an over active syntax checker disables nested stats functions e.g. sort(3,1,5,listsum(4,12,18,-9),5,2,31,4) returns a syntax error Added tests
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### Parser 1.1.3 has been released on maven-central!
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Fixed validation bugs in parser, made relevant matrix maethods support algebraic operations, like A*invert(B) etc, fixed bad bugs in flat matrix turbo implementations and optimized them further. Added tests
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‎LOGICAL.md‎

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<br>
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Example:<br>
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```
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VALUES_PNG="1 8 5 2" java -jar target/parser-ng-1.1.3.jar -e "avg(..L{MN/2})*1.1-MN < L0 | (L1+L{MN-1})*1.3 + MN< L0" -v
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VALUES_PNG="1 8 5 2" java -jar target/parser-ng-1.1.4.jar -e "avg(..L{MN/2})*1.1-MN < L0 | (L1+L{MN-1})*1.3 + MN< L0" -v
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avg(..L{MN/2})*1.1-MN < L0 | (L1+L{MN-1})*1.3 + MN< L0
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Expression : avg(..L{MN/2})*1.1-MN <L0 | (L1+L{MN-1})*1.3 + MN<L0
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Upon : 1,8,5,2

‎MORE.md‎

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# ParserNG
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<b>ParserNG</b> is a powerful open-source math tool that parses and evaluates algebraic expressions and also knows how to handle a lot of mathematical expressions. Its latest release on mavn-central (version 1.1.3) can be used to plot 2D graphs(Geometric plots and function plots) It works seamlessly on all Java platforms.<br><br>
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<b>ParserNG</b> is a powerful open-source math tool that parses and evaluates algebraic expressions and also knows how to handle a lot of mathematical expressions. Its latest release on mavn-central (version 1.1.4) can be used to plot 2D graphs(Geometric plots and function plots) It works seamlessly on all Java platforms.<br><br>
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Click the Sponsor button to do this.
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ParserNG v1.1.3 breaks the barrier in fully featured math parser frequencies!
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With various other optimizations, v1.1.3 comes with inner loop optimizations which uses a blazing fast, post-fix style algorithm to quickly evaluate inner brackets with less checks and less string manipulations.
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ParserNG v1.1.4 breaks the barrier in fully featured math parser frequencies!
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With various other optimizations, v1.1.4 comes with inner loop optimizations which uses a blazing fast, post-fix style algorithm to quickly evaluate inner brackets with less checks and less string manipulations.
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This obviously will make graphing and other iterative tasks super responsive.
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ParserNG v1.1.3 is an extremely feature rich math tool which also doubles as (arguably) the fastest pure Java expression evaluator on the planet.
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ParserNG v1.1.4 is an extremely feature rich math tool which also doubles as (arguably) the fastest pure Java expression evaluator on the planet.
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In benchmarks, it beats com.expression.parser(Java Math Expression Parser) by almost (10x-14x) and edges out Exp4J (which is lightweight) in many benchmarks.
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ParserNG 1.1.3 features strength reduction, constant folding and execution frame(array) based args passing(in contrast to Map based) to ensure O(1) complexity in passage of args to the evaluation stage.
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ParserNG 1.1.4 features strength reduction, constant folding and execution frame(array) based args passing(in contrast to Map based) to ensure O(1) complexity in passage of args to the evaluation stage.
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[Here are a few benchmarks here](./BENCHMARK_RESULTS.md)
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<dependency>
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<groupId>com.github.gbenroscience</groupId>
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<artifactId>parser-ng</artifactId>
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<version>1.1.3</version>
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<version>1.1.4</version>
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</dependency>
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## Using ParserNG as commandline tool
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You can use jar directly as commandline calculus. Unless the tool is packed to your distribution:
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```
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java -jar parser-ng-1.1.3.jar 1+1
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java -jar parser-ng-1.1.4.jar 1+1
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2.0
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```
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Or as logical parser
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```
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java -jar parser-ng-1.1.3.jar -l true and true
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java -jar parser-ng-1.1.4.jar -l true and true
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true
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java -jar parser-ng-1.1.3.jar -l "2 == (4-2)"
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java -jar parser-ng-1.1.4.jar -l "2 == (4-2)"
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true
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```
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You can get help by
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```
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java -jar parser-ng-1.1.3.jar -h
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ParserNG 1.1.3 math.Main
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java -jar parser-ng-1.1.4.jar -h
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ParserNG 1.1.4 math.Main
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-h/-H/--help this text; do not change for help (witout dashes), which lists functions
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-v/-V/--verbose output is reprinted to stderr with some inter-steps
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-l/-L/--logic will add logical expression wrapper around the expression
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```
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You can get examples by verbose help:
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```
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java -jar parser-ng-1.1.3.jar -h -v
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java -jar parser-ng-1.1.4.jar -h -v
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```
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you can list functions:
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```
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java -jar parser-ng-1.1.3.jar help
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java -jar parser-ng-1.1.4.jar help
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List of currently known methods:
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acos - help not yet written. See https://github.com/gbenroscience/ParserNG
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...
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```
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you can list logical operators:
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```
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java -jar parser-ng-1.1.3.jar -l help
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java -jar parser-ng-1.1.4.jar -l help
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Comparing operators: !=, ==, >=, <=, le, ge, lt, gt, <, >
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Logical operators: impl, xor, imp, eq, or, and, |, &
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As Mathematical parts are using () as brackets, Logical parts must be grouped by [] eg.
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### cmdline examples
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Following lines describes, how stdin/arguments are processed, and how different is input/output with `-t` on/off
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```
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java -jar parser-ng-1.1.3.jar -h
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java -jar parser-ng-1.1.4.jar -h
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this help
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java -jar parser-ng-1.1.3.jar 1+1
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java -jar parser-ng-1.1.4.jar 1+1
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2.0
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java -jar parser-ng-1.1.3.jar "1+1
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java -jar parser-ng-1.1.4.jar "1+1
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+2+2"
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2.0
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java -jar parser-ng-1.1.3.jar -t "1+1
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java -jar parser-ng-1.1.4.jar -t "1+1
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+2+2"
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java -jar parser-ng-1.1.3.jar -i 1+1
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java -jar parser-ng-1.1.4.jar -i 1+1
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nothing, will expect manual output, and calculate line by line
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java -jar parser-ng-1.1.3.jar -i -t 1+1
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java -jar parser-ng-1.1.4.jar -i -t 1+1
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nothing, will expect manual output and calcualte it all as one expression
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echo 2+2 | java -jar parser-ng-1.1.3.jar 1+1
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echo 2+2 | java -jar parser-ng-1.1.4.jar 1+1
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2.0
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echo "1+1
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2.0
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echo "1+1
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java -cp parser-ng-1.1.3.jar parser.cmd.ParserCmd "1+1
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java -cp parser-ng-1.1.4.jar parser.cmd.ParserCmd "1+1
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echo "1+1
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2.0
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java -cp parser-ng-1.1.3.jar parser.MathExpression "1+1
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java -cp parser-ng-1.1.4.jar parser.MathExpression "1+1
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java -cp parser-ng-1.1.4.jar parser.LogicalExpression "true or false"
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```
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#### ParserNG and eigenvalues
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Version 1.1.3 of ParserNG allows you to quickly compute the eigenvalues of a Matrix.
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Version 1.1.4 of ParserNG allows you to quickly compute the eigenvalues of a Matrix.
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```Java
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#### ParsrNG and eigenvectors
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As of ParserNG 1.1.4 also, eigenvector computations have been added, do:
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```Java
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MathExpression expression = new MathExpression("eigvec(@(5,5)(12,1,4,2,9,3,1,8,-5,6,13,9,7,3,5,7,3,5,4,9,13,2,4,8,6))");

‎README.md‎

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For benchmarks showing ParserNG duking it out in the ring with other parsers,
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[check ParserNg-wars]( https://github.com/gbenroscience/ParserNg-wars )
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**ParserNG 1.1.3** is a **blazing-fast**, nigh zero allocation(memory wise), **pure Java**, **zero-native-dependencies** math expression parser and evaluator.
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**ParserNG 1.1.4** is a **blazing-fast**, nigh zero allocation(memory wise), **pure Java**, **zero-native-dependencies** math expression parser and evaluator.
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It **beats exp4J, and com.expression.parser on evaluation speed** across every kind of expression — from simple algebra to heavy trig, matrices, and calculus; and manages to beat Janino, the gold standard on some, while rivalling it on a host of other expressions
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The normal mode routinely does about **3-10 million evaluations per second** while the new Turbo mode easily peaks at about **10 million to 90 million evaluations per second**.
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[![Maven Central](https://img.shields.io/maven-central/v/com.github.gbenroscience/parser-ng.svg?label=Maven%20Central)](https://central.sonatype.com/artifact/com.github.gbenroscience/parser-ng)
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[![License](https://img.shields.io/github/license/gbenroscience/ParserNG?color=blue)](https://github.com/gbenroscience/ParserNG/blob/master/LICENSE)
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![Java](https://img.shields.io/badge/Java-8%2B-orange)
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![Latest Version](https://img.shields.io/badge/version-1.1.3-success)
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![Latest Version](https://img.shields.io/badge/version-1.1.4-success)
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> **1.1.3** introduces **Turbo Scalar** and **Turbo Matrix** compiled paths + massive speed improvements via strength reduction, constant folding, and O(1) frame-based argument passing.
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> **1.1.4** introduces **Turbo Scalar** and **Turbo Matrix** compiled paths + massive speed improvements via strength reduction, constant folding, and O(1) frame-based argument passing.
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## ✨ Highlights (v1.1.3)
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## ✨ Highlights (v1.1.4)
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- **Speed champion** — rivals Janino in most benchmarks, and beats exp4J, com.expression.parser and Parsii in every benchmark (see [BENCHMARK_RESULTS.md](BENCHMARK_RESULTS.md))
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- **Turbo Mode** — compile once, evaluate millions of times per second (Scalar + Matrix paths)
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<dependency>
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<artifactId>parser-ng</artifactId>
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<version>1.1.4</version>
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</dependency>
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```
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Also available on **Maven Central**:
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https://central.sonatype.com/artifact/com.github.gbenroscience/parser-ng/1.1.3
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https://central.sonatype.com/artifact/com.github.gbenroscience/parser-ng/1.1.4
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## 🧮 Standard Mode — The old way
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## ⌨️ Command-line tool (REPL)
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```bash
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java -jar parser-ng-1.1.3.jar "sin(x) + cos(x)"
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java -jar parser-ng-1.1.3.jar "eigvalues(R=@(5,5)(...))"
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java -jar parser-ng-1.1.3.jar help
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java -jar parser-ng-1.1.4.jar "sin(x) + cos(x)"
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java -jar parser-ng-1.1.4.jar "eigvalues(R=@(5,5)(...))"
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java -jar parser-ng-1.1.4.jar help
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## 📊 Supported Features at a Glance
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- [BENCHMARK_RESULTS.md](BENCHMARK_RESULTS.md) — full speed comparisons
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- [GRAPHING.md](GRAPHING.md) — plotting on Swing / JavaFX / Android
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- [LATEST.md](LATEST.md) — what’s new in 1.1.3
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- Javadoc: https://javadoc.io/doc/com.github.gbenroscience/parser-ng/1.1.3
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- [LATEST.md](LATEST.md) — what’s new in 1.1.4
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- Javadoc: https://javadoc.io/doc/com.github.gbenroscience/parser-ng/1.1.4
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- [Hello world and original readme](src/main/java/com/github/gbenroscience/README.md) — Original readme for pre-1.0 versions with a lot of, still valid, examples
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## ❤️ Support the Project
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**ParserNG 1.1.3** — faster than the competition, stronger on matrices, and now with real Turbo Scalar + Turbo Matrix compiled power.
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**ParserNG 1.1.4** — faster than the competition, stronger on matrices, and now with real Turbo Scalar + Turbo Matrix compiled power.
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Happy parsing! 🚀
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— **GBENRO JIBOYE** (@gbenroscience)

‎nb-configuration.xml‎

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That way multiple projects can share the same settings (useful for formatting rules for example).
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Any value defined here will override the pom.xml file value but is only applicable to the current project.
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-->
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<netbeans.compile.on.save>none</netbeans.compile.on.save>
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<netbeans.compile.on.save>all</netbeans.compile.on.save>
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</properties>
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</project-shared-configuration>

‎pom.xml‎

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<modelVersion>4.0.0</modelVersion>
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<artifactId>parser-ng</artifactId>
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<version>1.1.4</version>
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<packaging>jar</packaging>
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<!--
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I started this project 2009 and have been upgrading it since then.
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<name>ParserNG</name>
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<description>Rich and Performant, Cross Platform Java Library(100% Java).No native dependencies.
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ParserNG is the height of interpreted Math parsing in Java. It is the fastest of all interpreted Java math parsers.
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Version 1.1.3 squashes a bug where the result of rot(swarm,args...) cannot be assigned to a matrix..e.g V=rot(@(10,3)(matrix-entries), pi, origin, direction)
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Version 1.1.4 squashes a bug where an over active syntax checker disables nested stats functions e.g. sort(3,1,5,listsum(4,12,18,-9),5,2,31,4) returns a syntax error
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crashes
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</description>
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<url>https://github.com/gbenroscience/ParserNG</url>

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