An elementary algorithm to evaluate trigonometric functions to high precision

B. Tomas Johansson*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Evaluation of the cosine function is done via a simple Cordic-like algorithm, together with a package for handling arbitrary-precision arithmetic in the computer program Matlab. Approximations to the cosine function having hundreds of correct decimals are presented with a discussion around errors and implementation.

Original languageEnglish
JournalInternational Journal of Mathematical Education in Science and Technology
Volumein press
Early online date19 Jul 2017
DOIs
Publication statusE-pub ahead of print - 19 Jul 2017

Bibliographical note

This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Mathematical Education in Science and Technology on 19 july 2017, available online: http://www.tandfonline.com/10.1080/0020739X.2017.1349943

Keywords

  • arbitrary-precision arithmetic
  • cordic algorithm
  • mulprec package

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