Given a set of A , find the fundamental matrix.

The fundamental matrix F of the stereo pair is a 3x3 matrix

If we have a set of points to find the fundamental matrix (F) using the formulation A*f=0, where A has size (N,9) as shown below. And if f=[ f11,f12,f13,f21,f22,f23,f31,f32,f23 ] is the linearized fundamental vector of the fundamental F (a 3x3 matrix).

Find F(1,2)=F (first row, second column), give your answer to 3 decimal places.

A =

[f11 f12 f13] F = |f21 f22 f23 |f31 f32 f33 0.7296 -1.1977 -0.78433 -1.4082 2.3116 1.5138 -0.93022 1.527 1 4.679 -1.058 2.2185 -0.95176 0.21522 -0.45126 2.1091 -0.47693 1 1.2438 -1.5468 -1.0486 -1.7392 2.1628 1.4663 -1.1862 1.4751 1 0.071683 0.16894 -0.20018 0.30001 0.70705 -0.83781 -0.35809 -0.84393 1 0.575 1.1225 -0.76299 1.1081 2.1633 -1.4704 -0.75362 -1.4712 1 0.45377 -0.077335 0.67519 -0.075831 0.012924 -0.11283 0.67206 -0.11454 1 2.156 0.32635 1.4615 0.32087 0.048569 0.2175 1.4752 0.2233 1 5.3118e-06 0.0015516 -0.001033 0.0076266 2.2278 -1.4832 -0.0051421 -1.502 1 0.4273 -0.31619 -0.72463 -0.25234 0.18672 0.42792 -0.58968 0.43635 1 0.0014893 0.019485 0.011149 0.22948 3.0025 1.718 0.13358 1.7477 1.545 -0.089697 -1.3231 -0.069682 0.0040456 0.059677 -1.1677 0.067791 1 0.28746 -0.51145 0.47864 -0.62918 1.1195 -1.0476 0.60058 -1.0686 1 [f11 f12 f13] F = |f21 f22 f23 |f31 f32 f33 0.7296 -1.1977 -0.78433 -1.4082 2.3116 1.5138 -0.93022 1.527 1 4.679 -1.058 2.2185 -0.95176 0.21522 -0.45126 2.1091 -0.47693 1 1.2438 -1.5468 -1.0486 -1.7392 2.1628 1.4663 -1.1862 1.4751 1 0.071683 0.16894 -0.20018 0.30001 0.70705 -0.83781 -0.35809 -0.84393 1 0.575 1.1225 -0.76299 1.1081 2.1633 -1.4704 -0.75362 -1.4712 1 0.45377 -0.077335 0.67519 -0.075831 0.012924 -0.11283 0.67206 -0.11454 1 2.156 0.32635 1.4615 0.32087 0.048569 0.2175 1.4752 0.2233 1 5.3118e-06 0.0015516 -0.001033 0.0076266 2.2278 -1.4832 -0.0051421 -1.502 1 0.4273 -0.31619 -0.72463 -0.25234 0.18672 0.42792 -0.58968 0.43635 1 0.0014893 0.019485 0.011149 0.22948 3.0025 1.718 0.13358 1.7477 1.545 -0.089697 -1.3231 -0.069682 0.0040456 0.059677 -1.1677 0.067791 1 0.28746 -0.51145 0.47864 -0.62918 1.1195 -1.0476 0.60058 -1.0686 1