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2. Data preprocessing: Handle the exception for the 0 denominator If the denominator ad - bc = 0, print Cramers rule cannot be applied to these coefficients Hint: because a, b, c, d are all in floating-point format, it is better to determine the 0 denominator condition by using Jad – bc| <ɛ, instead of ad – bc = 0; for your implementation, set ɛ = le-5 and use double type variables. 3. Computation: Use Cramers rule to calculate the solution.

2. Data preprocessing: Handle the exception for the 0 denominator If the denominator ad - bc = 0, print Cramers rule cannot be applied to these coefficients Hint: because a, b, c, d are all in floating-point format, it is better to determine the 0 denominator condition by using Jad – bc| <ɛ, instead of ad – bc = 0; for your implementation, set ɛ = le-5 and use double type variables. 3. Computation: Use Cramers rule to calculate the solution.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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This is using C programming and a vi editor in Linux. I don't understand the data preprocessing section.

Please enter the coefficients of the following equations: *************** * ax + by e cx + dy f * ****** ** **** a = 1.0 b 8.0 4.0 d = 9.0 e 6.0 f = 1.0 2. Data preprocessing: Handle the exception for the 0 denominator If the denominator ad - bc = 0, print Cramers rule cannot be applied to these coefficients Hint: because a, b, c, d are all in floating-point format, it is better to determine the 0 denominator condition by using Jad – bc| < ɛ, instead of ad – bc = 0; for your implementation, set ɛ = le-5 and use double type variables. 3. Computation: Use Cramers rule to calculate the solution. 4. Output the solution. Use the following format: The solution of the linear system is: x = -2.000000 1.000000 I| || || ||
Transcribed Image Text:Please enter the coefficients of the following equations: *************** * ax + by e cx + dy f * ****** ** **** a = 1.0 b 8.0 4.0 d = 9.0 e 6.0 f = 1.0 2. Data preprocessing: Handle the exception for the 0 denominator If the denominator ad - bc = 0, print Cramers rule cannot be applied to these coefficients Hint: because a, b, c, d are all in floating-point format, it is better to determine the 0 denominator condition by using Jad – bc| < ɛ, instead of ad – bc = 0; for your implementation, set ɛ = le-5 and use double type variables. 3. Computation: Use Cramers rule to calculate the solution. 4. Output the solution. Use the following format: The solution of the linear system is: x = -2.000000 1.000000 I| || || ||
Cramers rule (source: http://en.wikipedia.org/wiki/Cramer_rule) is a theorem in linear algebra devised by Gabriel Cramer to calculate the solution of a system of linear equations by using determinants. In a two variable case: ах + by сх + dy %3D f, = e which in matrix format is a then x and y can be found with Cramers rule as b divided by e а or x = d ed-bf ad-bc X = f d And a y = с f e a divided by or y = d af-ec ad-bc b = 0, the Cramer's rule cannot be applied a Finally, there is an exception in Cramers rule when the determinant (Denominator is 0 and division is meaningless). Your linear equations solver program should contain the following sections: 1. Data input: Let the user enter valid equation coefficients in the following format:
Transcribed Image Text:Cramers rule (source: http://en.wikipedia.org/wiki/Cramer_rule) is a theorem in linear algebra devised by Gabriel Cramer to calculate the solution of a system of linear equations by using determinants. In a two variable case: ах + by сх + dy %3D f, = e which in matrix format is a then x and y can be found with Cramers rule as b divided by e а or x = d ed-bf ad-bc X = f d And a y = с f e a divided by or y = d af-ec ad-bc b = 0, the Cramer's rule cannot be applied a Finally, there is an exception in Cramers rule when the determinant (Denominator is 0 and division is meaningless). Your linear equations solver program should contain the following sections: 1. Data input: Let the user enter valid equation coefficients in the following format:
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As we know that in Cramers rule if value of (ad-bc) exactly equal to 0 , then we cannot apply this rule.

 

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