## Abstract

In issue 31(2) of the Australian Senior Mathematics Journal, Kok (2017) describes a useful four-step process for investigating number patterns and identifying the underlying function. The process is demonstrated for both linear and quadratic functions.

With respect to the quadratic example, I provide an additional idea relevant to step 3 and demonstrate the use of Lagrange's interpolation formula as an alternative method for completing step 4.

With respect to the quadratic example, I provide an additional idea relevant to step 3 and demonstrate the use of Lagrange's interpolation formula as an alternative method for completing step 4.

Original language | English |
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Pages (from-to) | 8-12 |

Number of pages | 5 |

Journal | Australian Senior Mathematics Journal |

Volume | 32 |

Issue number | 1 |

Publication status | Published - 2018 |

## Keywords

- Interpolation