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boolean-calculator.ru

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Boolean expression calculator - online assistant for mathematics and computer scienceWebsite boolean-calculator. ruis a convenient online tool for working with Boolean functions. I...

Page analyze update date: 2026/03/30 20:54:49
Last whois update date: 2026/07/31 05:18:34
Domain Status
Registered
Paid till
24.09.2026
Available from
25.10.2026

Website Description

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Boolean expression calculator - online assistant for mathematics and computer science

Website boolean-calculator. ruis a convenient online tool for working with Boolean functions. It was created specifically for those who are faced with problems related to logical expressions - be they students, teachers or just fans of the exact sciences.

The main goal of the platform is to help the user simplify complex logical structures directly in the browser. There is no need to download programs or use specialized software on your computer. It is enough to open the page, enter an expression and within a couple of seconds you will receive a ready-made truth table.

Here you can work with functions from one to five variables. Each of them can take only two values: 0 or 1. This is the classic definition of Boolean algebra, where zero means false, one means true. This approach allows you to model statements and check their correctness, both in set theory and when solving practical problems.

What can the calculator do?

  • The truth tableis automatically built based on a given expression. This is especially useful for analyzing the behavior of a logic function under all possible combinations of inputs.
  • SDNF and SKNFare standard forms of representing functions. They are important in minimizing expressions and designing digital circuits.
  • Support for various operators. The site contains all the main symbols: amp; (AND), + (OR), not; (NOT), oplus; (sum modulo 2), rArr; (implication) and others.
  • Checking the correctness of the input. The program analyzes whether the variables and characters used are written correctly. If something is wrong, the system will give a hint.

Particularly interesting is the section describing the main functions of two variables. This explains why conjunction is actually multiplication and disjunction is actually addition. Implication, equivalence, Schaeffer's touch - everything is covered in detail. The user can understand not only how the function works, but also why it is needed.

What is also important is that the site offers to download a full version of the Logic Calculator program for Windows. Although the description here is a little condensed, nevertheless, the presence of a desktop version is a plus for those who prefer to work offline or want more features.

How to use?

It's simple. Enter the expression and click Solve! - and in a second you see the result. There is an interactive keyboard with the symbols: A B C D 0 1 + ( ). This helps to quickly assemble the formula without errors. Especially convenient when working on a smartphone or tablet.

Some users may wonder: can this tool be trusted? Yes, judging by the text, the site is not advertising, not temporary, not a hosting stub. There is no indication that the domain has expired or the service is unavailable. On the contrary, it looks like a stable resource that is already working and helping people.

Why is it worth trying?

Sometimes textbooks contain too much theory and not enough practice. And here is a real example. For example, you want to check whether an implication is always false only when a lie follows from truth? You check it on a calculator - everything fits. Or want to simplify a complex expression into its minimal form? Doing this in a minute is real.

Of course, there are no ideal solutions. Sometimes there is confusion with notations. For example, some use lt;gt; for equivalence, others - . But the site gives hints: what characters are supported, what to replace. This lowers the barrier to entry even for beginners.

Frequently asked questions

What is the maximum function size that the calculator can handle?

You can use one to five variables. It all depends on the number of combinations that need to be calculated. The more variables, the longer the table.

Do I need to register to use the site?

No, registration is not required. All features are available without an account. Just open the page and start working.

Does the calculator support the exclusive or exclusive operation?

Yes, it does. Denoted as or + in a circle. This function is often called the sum modulo two.

Is it possible to simplify the expression to its minimum form?

Of course, the program calculates SDNF and SCNF - these are standard methods for minimizing logical formulas.

Is there a mobile version of the site?

The site is adapted for any device. The interface works on phones, tablets and computers without problems.

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SEO Score
84.93%
124
Score achieved
146
Maximum score

Main Information

ℹ️
Title: Калькулятор логических выражений
Description: Упрощение логических выражений онлайн. Программа предназначена для получения таблиц истинности логических функций.
Keywords: empty
Page Encoding: utf-8
Page Filesize: 102 KB

Server Information

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IP: 194.156.117.23
Location: Russia,RU,55.7386,37.6068,Europe/Moscow
Http Server: nginx
Encoding: utf-8

Meta Tags List

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Internal Links

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External Links

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Whois Information

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domain_name: boolean-calculator.ru
update_date: on
update_time:
creation_date: 2021-09-24T13:05:38Z
creation_time: 1632488738
expiration_date: 2026-09-24T13:05:38Z

Whois Raw Data

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            domain:        BOOLEAN-CALCULATOR.RU
nserver: ns49.hostia.name.
nserver: ns50.hostia.name.
state: REGISTERED, DELEGATED, UNVERIFIED
person: Private Person
registrar: REGRU-RU
admin-contact: http://www.reg.ru/whois/admin_contact
created: 2021-09-24T13:05:38Z
paid-till: 2026-09-24T13:05:38Z
free-date: 2026-10-25
source: TCI
Last updated on 2026-07-31T05:18:01Z

Robots.txt

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			User-agent: *
Disallow: /wp-admin/
Disallow: /?t=*
Allow: /wp-admin/admin-ajax.php

Sitemap: https://boolean-calculator.ru/sitemap.xml        

SEO Audit

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Technical SEO

Response Code
200
Status 200 OK - page loads correctly.
Character Encoding
Page: utf-8, Header: utf-8
Character encoding consistent between HTML and headers.
Page Size
104699 bytes
Page size acceptable for fast loading.
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Resources
88 total
Too many resources. Optimize and combine files for better performance.
Hreflang Tags
0 hreflang tags
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Robots.txt
Exists
Robots.txt file found.
Sitemap
Declared in robots.txt
Sitemap declared in robots.txt.
HTTPS
Yes
Secure HTTPS connection enabled.
Compression
gzip
Gzip or Zstd compression enabled for faster loading.
Caching
private, proxy-revalidate, s-maxage=0
Cache-control headers properly set.
Page Speed
6.41 ms
Excellent loading speed.

On-Page SEO

Title
Калькулятор логических выражений
Good title length (30-60 characters).
Meta Description
Упрощение логических выражений онлайн. Программа предназначена для получения таблиц истинности логических функций. Lenght:114
Good meta description length (100-160 characters).
H1 Heading
1 found - "Калькулятор логических выражений"
Good - single H1 heading found.
Word Count
1069
Good content length (500-2000 words recommended).
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Canonical Tag
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Duplicate Meta
[]
No duplicate meta tags found.
Keywords
empty
Meta keywords set (note: not used by major search engines).

Content and UX

Language
ru-ru
Language attribute properly set.
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Images
32 total, 23 missing ALT
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Viewport
width=device-width, initial-scale=1
Viewport meta tag properly set for mobile devices.
Open Graph
All OG tags present.
All essential OpenGraph tags present.
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Structured Data
0 JSON-LD scripts
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Positions in Google

Search Phrases - Google

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Position Phrase Page Snippet
1калькулятор выражений информатика/
2упростить логическое выражение/
4калькулятор истинности онлайн/truth-table-online
6упрощение логических выражений онлайн/
6таблица истинности онлайн калькулятор/truth-table-online
11упростить логическое выражение информатика/
16упрощение логических выражений информатика/
18чему равен 1 кбайт/chemu-raven-1-byte-...
20днф онлайн/
28логика онлайн/

Positions in Yandex

Search Phrases - Yandex

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Position Phrase Page Snippet
39 a b c d/
6(+6)c c ответ/
8(+4)найдите значение 1 0 0 1/
11b b b ответ/
11a b b c d 0/
12д a a b c/
13б a b c/
14c d c d ответ/

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