Boolean Polynomial Truth Table Calculator

Enter a Boolean polynomial and generate every truth table row. Inspect minterms and exports easily. Validate algebraic logic with clean steps and downloadable files.

Calculator Inputs

Example: x*y + z, x'y + z, (a + b)*c, or x xor y.
Use commas. Leave blank for auto detect.

Example Data Table

Expression Variables Sample row Output Meaning
x*y + z x, y, z 1, 1, 0 1 Product term is true.
x*y + z x, y, z 1, 0, 1 1 Constant row is carried by z.
x*y + z x, y, z 1, 1, 1 0 XOR addition cancels two ones.

Formula Used

A Boolean polynomial is evaluated over two values, 0 and 1. Addition means XOR, so 1 + 1 = 0. Multiplication means AND, so 1*1 = 1 and any product with 0 becomes 0.

For variables x1, x2, ..., xn, the calculator lists every binary assignment. It evaluates f(x1, x2, ..., xn) = P(x1, x2, ..., xn) mod 2 for each assignment.

The normal form is found from the truth vector by a binary Möbius transform. Nonzero coefficients become product terms, and all product terms are joined by XOR addition.

How to Use This Calculator

  1. Enter a Boolean polynomial, such as x*y + z or x'y + z.
  2. Enter variables in the order you want, such as x, y, z.
  3. Choose row order, output format, index format, and complement columns.
  4. Press the submit button to generate the result above the form.
  5. Use the CSV or PDF buttons to save the generated truth table.

Advanced Boolean Polynomial Truth Table Guide

What This Calculator Does

A Boolean polynomial represents logic with variables that can only be zero or one. It uses addition for exclusive or, multiplication for and, and optional not signs for complements. This calculator turns that expression into a complete truth table. Each row shows one binary assignment. The final column shows the evaluated result.

Why It Is Useful

The tool is useful for algebra, discrete mathematics, digital logic, switching circuits, and coding theory. It helps you inspect every possible input state without hand writing many rows. You can enter variables in your preferred order. You can also leave the variable box empty and let the calculator detect names from the expression.

Understanding the Summary

The result summary gives minterms, maxterms, total ones, total zeros, balance status, algebraic degree, and the algebraic normal form. Minterms list rows where the polynomial equals one. Maxterms list rows where the output is zero. A balanced function has the same number of ones and zeros. A tautology is always one. A contradiction is always zero.

Supported Operators

The expression parser accepts common symbols. Use plus or caret for exclusive or. Use star or ampersand for multiplication. Use a vertical bar for ordinary or. Use exclamation or tilde for not. Parentheses can group terms. Constants zero and one are supported. The prime symbol after a variable also means not, such as x'.

Normal Form Details

For deeper study, compare the entered expression with the generated normal form. The normal form is built from the truth vector using a binary Möbius transform. This shows the polynomial as a sum of products over two valued arithmetic. It is a compact way to describe Boolean behavior.

Export and Practical Limits

Use the export buttons after calculation. The CSV file is helpful for spreadsheets, reports, and testing. The document export is useful for quick sharing or printing. The example table below gives sample inputs before you try your own expression.

Truth tables grow quickly as variables increase. Two variables create four rows. Three variables create eight rows. Ten variables create one thousand twenty four rows. Keep the variable count practical for browsers and reports. For very large designs, test smaller parts first, then combine results carefully. This method improves clarity and reduces mistakes. Always verify circuit designs with independent methods before deployment. Document assumptions clearly alongside exported tables.

FAQs

1. What is a Boolean polynomial?

It is an expression made from variables that have only two values. In this calculator, plus means XOR, multiplication means AND, and not signs create complements.

2. Can I use x*y + z format?

Yes. Use x*y for AND and plus for XOR. You can also use caret for XOR, ampersand for AND, and parentheses for grouping.

3. What does x' mean?

The prime mark means complement. So x' is the same as not x. You may also write !x or ~x for the same meaning.

4. What are minterms?

Minterms are row indexes where the final output equals one. They help describe where the Boolean function is active or true.

5. What are maxterms?

Maxterms are row indexes where the final output equals zero. They are useful when studying false cases or building product based forms.

6. Why does 1 + 1 equal 0 here?

Boolean polynomial addition uses XOR arithmetic. XOR returns one only when inputs differ. Since both inputs are one, the result becomes zero.

7. How many variables can I use?

The page allows up to 12 variables. That already creates 4096 rows. More variables can slow browsers and make exports difficult.

8. Can I download the result?

Yes. After generating the truth table, use the CSV button for spreadsheet data or the PDF button for a printable report.

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