Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Systems of Linear Equations Systems of equations using solve command. SYNTAX [x1,x2,...] = solve(eqn1, eqn2...) Example: Solve the systems of equation. graph the equations. PROBLEM 1 PROBLEM 2 x+7y=3 2x-5y = 4 Solution: syms x y x1 x2 x3 %Problem 1 x₁2x₂ + 3x₂=5 3x₁ + 4x₂ - 5x3 = 7 x₁ + 8x₂-11x3 = 2 eqn1 = x+7*y==3; eqn2 = 2*x-15*y==4; [Rt1, Rt2] = solve (eqn1, eqn2); ezplot (eqn1) hold on end grid on ezplot (eqn2) if isempty(Rt1) else text1 = "The system is inconsistent"; fprintf(text1); plot (Rt1, Rt2,'*') text1= "The system is consistent"; fprintf(text1); hold off plot (Rt1, Rt2,'*') text1= "The system is consistent"; fprintf(text1); hold off My Solutions >
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Transcribed Image Text:Systems of Linear Equations Systems of equations using solve command. SYNTAX [x1,x2,...] = solve(eqn1, eqn2...) Example: Solve the systems of equation. graph the equations. PROBLEM 1 PROBLEM 2 x+7y=3 2x-5y = 4 Solution: syms x y x1 x2 x3 %Problem 1 x₁2x₂ + 3x₂=5 3x₁ + 4x₂ - 5x3 = 7 x₁ + 8x₂-11x3 = 2 eqn1 = x+7*y==3; eqn2 = 2*x-15*y==4; [Rt1, Rt2] = solve (eqn1, eqn2); ezplot (eqn1) hold on end grid on ezplot (eqn2) if isempty(Rt1) else text1 = "The system is inconsistent"; fprintf(text1); plot (Rt1, Rt2,'*') text1= "The system is consistent"; fprintf(text1); hold off plot (Rt1, Rt2,'*') text1= "The system is consistent"; fprintf(text1); hold off My Solutions >
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Step 3: Solving and Graphing Systems of Linear Equations in MATLAB
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