Linear functions are used to model a broad range of real-world problems. The ability to solve linear equations and inequalities is an essential skill for analysing these models. This section covers ...

Multiplies ( A^{-1} ) with ( B ) to obtain the solution vector ( X ). Provides error handling for cases where the matrix ( A ) is not invertible or input is invalid.

English A-level will be more in depth under proposals published on Friday. A shake-up of English literature at A-level will result in teenagers studying a minimum of eight texts in depth, says a ...

A shake-up of English literature at A-level will result in teenagers studying a minimum of eight texts in depth, says a consultation paper. History A-level students will study a "chronological range" ...