---
title: "DEF on the Sinclair"
type: "article"
slug: "def-on-the-sinclair"
url: "http://localhost/article/def-on-the-sinclair/"
markdown_url: "http://localhost/article/def-on-the-sinclair.md"
published_at: "2020-10-27T17:18:55+00:00"
modified_at: "2024-06-23T01:04:39+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "One way around DEFine in Sinclair Basic is to replace all FN calls with the expression in the definition. This often requires breaking down an equation to simplify it."
category:
  - name: "SYNC"
    slug: "sync"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/sync/"
post_tag:
  - name: "1982"
    slug: "year-1982"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1982/"
  - name: "Jon T. Passler"
    slug: "jon-t-passler"
    taxonomy: "post_tag"
    url: "http://localhost/tag/jon-t-passler/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
model:
  - name: "Sinclair ZX81"
    slug: "zx81"
    taxonomy: "model"
    url: "http://localhost/model/zx81/"
publication: "Sync"
publication_r:
  id: 10243
  title: "SYNC"
  type: "periodical"
  url: "http://localhost/periodical/sync-magazine/"
authors: "Jon Passler"
volume: "2"
issue: "4"
issues_articles:
  - id: 26644
    title: "SYNC v2 n4"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n4/"
pages: "64-66"
pubdate: "July/August 1982"
archive_link: false
volumeissue: "v2n4"
companies_articles:
  - id: 10995
    title: "Jon T. Passler"
    type: "company"
    url: "http://localhost/company/jon-t-passler/"
---

# DEF on the Sinclair

One way around DEFine in Sinclair Basic is to replace all FN calls with the expression in the definition. This often requires breaking down an equation to simplify it.