Question

Use matlab backslash operator to output the solution of system of equation.

Print the unknowns in console.

Equations are

20*n+8*z+13*m=9,

2*n+17*z+16*m=10,

11*n+19*z+16*m=7,

Answer 1

Aer=[20,8,13;2,17,16;11,19,16];

ber=[9;10;7];

xer=Aer\ber;

fprintf('n=%f\n',xer(1))

fprintf('z=%f\n',xer(2))

fprintf('m=%f\n',xer(3))

% OUTPUT

n=-0.176140

z=-0.707368

m=1.398596

Answer 2

Matlab command window code

============================================================================================

A=[20,8,13;2,17,16;11,19,16]

b=[9;10;7]

x=A\b

============================================================================================

Output