Make sure to validate your answer by doing back substitution to the given equations. For example substitute the value of x = 2.32 ; y = -6.46; z = -2.43; w = 2.00 back to the original equation. If both sides of the equations are equal then you know for sure that the answer is correct. The reason is the algorithm uses Cramer's Rule and sometimes the answer is not correct. It happens when the calculated determinant of 4 x 4 value is 0 (zero). detX = any number / determinant of 4 x 4 = 0 will generate error message because division by 0 is not allowed in calculator.

How is this automatic calculator becomes possible - see the hand calculation method using Gaussian elimination method

🔗 Application of 4 x 4 Matrix in game design and augmented reality.

4 Simultaneous Equation Calculator

Four Simultaneous Equation Calculator

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