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Mathematics
Quick fact
Inverting a 2x2 matrix is quick: swap the diagonal, negate the off-diagonal, and divide by the determinant. If the determinant is zero, no inverse exists—and the system either has no solution or infinitely many.
Why this is interesting
You know elimination, but what if you could just 'divide' by a matrix? That's exactly what an inverse lets you do—turning a system of equations into a one-step solution.
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Subjects · study & training · careers
Choose something you are considering. FACTREE will give you a clear picture of what it contains, how its main parts connect and where it could lead.
This private catalogue connects 31 subjects, study routes and careers across six broad areas. Public Maps and learner routes remain off.
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See what programming involves, how its main areas connect, and whether you find the knowledge interesting enough to take it further.
Structuring the Programming Map…
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