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Open toolPolynomial Calculator
Evaluate a polynomial at a supplied real value. At most 100 coefficients, from highest degree to constant.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Calculate result.
Your result
Enter your details
Result will appear here
How Polynomial Calculator works
Evaluate a polynomial at a supplied real value.
At most 100 coefficients, from highest degree to constant. Uses Horner evaluation; no roots, factorization or symbolic simplification. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding.
How to use Polynomial Calculator
Follow the labelled inputs.
Enter coefficients, highest degree first
Replace the example with coefficients, highest degree first. The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
Set value of x. At most 100 coefficients, from highest degree to constant.
Tool result
Run, review and save
Select Calculate result. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Polynomial Calculator
Check the supplied example
The starting example produces 10. Evaluate a polynomial at a supplied real value.
Use your own inputs
Read the labels for coefficients, highest degree first and value of x. At most 100 coefficients, from highest degree to constant.
Record a reviewed result
Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Evaluate a polynomial at a supplied real value.
At most 100 coefficients, from highest degree to constant. Uses Horner evaluation; no roots, factorization or symbolic simplification. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding.
Supported input and limits
Check the stated scope before you run it.
At most 100 coefficients, from highest degree to constant. Uses Horner evaluation; no roots, factorization or symbolic simplification. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding.
The input stays in this browser. Copy result and Download save the same displayed text.
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Polynomial Calculator: common questions
Answers about using Polynomial Calculator and understanding its results.
Which inputs does this tool accept?
At most 100 coefficients, from highest degree to constant. Uses Horner evaluation; no roots, factorization or symbolic simplification. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding.
Can I copy or download the result?
Yes. Copy result copies the displayed text, and Download saves the same result as a text file. Calculations run in your browser without an account.
Calculate result with your input
Check the calculated result, then copy or download it.