Using MATRIX Mode to Solve Systems of Equations on the Sharp EL-W516XG Calculator

[@kifter4254]

Thank you very much Alan!

[@guillaume3019]

thx you explain very well 👍

[@GENGHISBERUELA]

thanksss bro!

[@PraviPeroMartic]

What if it has 3 x,y,z no u?

[@alanwarren8053]

In that situation, you would use a 3x3 matrix for the coefficients (matA) and a 3x1 matrix for the constants (matB).

[@PraviPeroMartic]

Can you even do 4x3?

[@alanwarren8053]

No because this method relies on using the inverse matrix and it is not possible to find the inverse of a matrix with an unequal number of rows and columns. For a system of 4 linear equations with 3 unknowns, you could use matrix mode to solve 3 of the equations then check that the values satisfy the remaining equation. If they do not, then the system is inconsistent.

[@mamosiwathamae2874]

Please do determinate, Q=K. D