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### Recent Posts

- Examples of Non-database Sources in Report Building April 29, 2016
- Collection of Solutions to Knotty Report Building Problems March 25, 2016
- The Three Stages in Building Reports with Heterogeneous Data Sources January 21, 2016
- esProc Assists BIRT in Handling Irregular Month Grouping June 2, 2015
- Calculate Growth Rate in Jasper Crosstabs May 29, 2015
- esProc Joins a Structured Text file with a JSON File May 27, 2015
- Find Differences between Text Files with esProc May 25, 2015
- esProc Assists Jasper in Calculating Loan Payments May 21, 2015
- esProc Assists Jasper in Calculating Opening Balance May 19, 2015
- esProc Assists BIRT in Splitting Fields and Converting Them to Records May 18, 2015
- esProc Assists BIRT in Handling Intragroup Inter-row Calculations May 15, 2015
- esProc File Computing: Parallel Grouping and Aggregation May 14, 2015
- esProc File Computing: Parallel Query and Filter May 13, 2015
- esProc File Computing: Cascaded Foreign Key Relationships May 12, 2015
- A Code Example of External Memory Sorting in esProc May 11, 2015
- A Code Example of External Memory Grouping in esProc May 8, 2015
- esProc Exports Data by Groups May 7, 2015
- Segmented Data Exports to Text Files of Specified Format in esProc May 6, 2015
- Generate a Result Set with Dyamic Columns with esProc May 5, 2015
- Aggregate Data by Specified Numbers of Rows with esProc May 4, 2015
- esProc Assists Java in Merging Text Files to Excel April 30, 2015
- Find Differences between Text Files with esProc April 29, 2015

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# Category Archives: Untructured Computing

## 24-Point Game Programming in esProc

24-point game is a common intellectual game, which can be played with cards without jokers. The rule is to draw four random cards and manipulate the four numbers to get the result 24 using four arithmetic operations: addition, subtraction, multiplication … Continue reading

## esProc Solves Eight Queens Problem

Among lots of chess puzzles, the problem of the eight queens is the most well-known example. Eight queens must be placed on a 8×8 chessboard so that no queen attacks any others. Well, how many solutions are there? A queen … Continue reading

## Several Methods to Compute Fibonacci Sequence with esProc

Fibonacci Sequence is also called “Rabbit Sequence”, because it can be described by a problem related to rabbits: After the second month of their life, a pair of rabbits can give birth to two little ones every month. If all … Continue reading

Posted in Untructured Computing
Tagged code, compute, esProc, example, Fibonacci sequence, methods
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## esProc Solves Multivariable Linear Equations

For a given system of linear equations in n unknowns, there must be n equations to form the system. e.g.: 3x+4y+5z=26 5x+6y+10z=47 4x+8y+7z=41 Well, how do you solve this system of linear equations with n variables with esProc? First, the … Continue reading