The logo for the New Zealand Institute of Mathematics and its Applications (NZIMA) is based on a design produced by Mike Thomas of the Mathematics Education Unit at the University of Auckland. The design has a stylized koru unfurling in a Fibonacci spiral in order to represent both New Zealand and mathematics.

The Fibonacci spiral is a geometric spiral based on a Fibonacci sequence of numbers, where each term after the second one is the sum of the two preceding terms. This can be seen in the squares that make up the design of the logo: the side-length of each square is the sum of the side-lengths of the two next smallest squares. The ratio of each term to the previous one gradually converges to a limit of approximately 1.618, which is also known as the "golden ratio". The golden ratio occurs frequently in natural phenomena.

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Last updated on 27 October 2006 by