---
title: "Improved 4K Sine Calculation"
type: "article"
slug: "improved-4k-sine-calculation"
url: "http://localhost/article/improved-4k-sine-calculation/"
markdown_url: "http://localhost/article/improved-4k-sine-calculation.md"
published_at: "2020-10-27T17:12:42+00:00"
modified_at: "2024-06-23T00:44:21+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Use these lines in 4K programs requiring sines between 0 and 90 degrees."
category:
  - name: "Syntax"
    slug: "syntax"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/syntax/"
post_tag:
  - name: "1981"
    slug: "year-1981"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1981/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
model:
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
indiv:
  - name: "Brian O'Brien"
    slug: "brian-obrien"
    taxonomy: "indiv"
    url: "http://localhost/indiv/brian-obrien/"
publication: "Syntax"
publication_r:
  id: 10246
  title: "Syntax"
  type: "periodical"
  url: "http://localhost/periodical/syntax/"
authors: "Brian O'Brien"
volume: "2"
issue: "11"
issues_articles:
  - id: 26703
    title: "Syntax/Syntax ZX80 v2 n11"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v2-n11/"
pages: "16"
pubdate: "November 1981"
archive_link: false
volumeissue: "v2n11"
---

# Improved 4K Sine Calculation

Use these lines in 4K programs requiring sines between 0 and 90 degrees.