An elementary algorithm to evaluate trigonometric functions to high precision

B. Tomas Johansson*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    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
    Pages (from-to)131-137
    JournalInternational Journal of Mathematical Education in Science and Technology
    Volume49
    Issue number1
    Early online date19 Jul 2017
    DOIs
    Publication statusPublished - 2018

    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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