---
title: "Solving Implicit Functions on the ZX81"
type: "article"
slug: "solving-implicit-functions-on-the-zx81"
url: "http://localhost/article/solving-implicit-functions-on-the-zx81/"
markdown_url: "http://localhost/article/solving-implicit-functions-on-the-zx81.md"
published_at: "2020-10-27T17:18:55+00:00"
modified_at: "2024-06-23T01:04:46+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "The computer can handle problems of this kind by making a series of successive approximations: try out any value of X, and see if it gives the Y you want; if it does not, then try another value of X."
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: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - 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/"
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "John (Basil) Wentworth"
    slug: "john-basil-wentworth"
    taxonomy: "indiv"
    url: "http://localhost/indiv/john-basil-wentworth/"
publication: "Sync"
publication_r:
  id: 10243
  title: "SYNC"
  type: "periodical"
  url: "http://localhost/periodical/sync-magazine/"
authors: "John (Basil) Wentworth"
volume: "2"
issue: "5"
issues_articles:
  - id: 26645
    title: "SYNC v2 n5"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n5/"
pages: "58-61"
pubdate: "September/October 1982"
archive_link: false
volumeissue: "v2n5"
---

# Solving Implicit Functions on the ZX81

The computer can handle problems of this kind by making a series of successive approximations: try out any value of X, and see if it gives the Y you want; if it does not, then try another value of X.