±Free
Polynomial evaluator
Evaluate polynomial coefficients from highest power to constant with Horner’s method.
List coefficients in descending power order, including zeros for missing terms, and enter x. Horner’s method accumulates the value with repeated multiplication and addition; leading zero coefficients are removed when reporting the degree.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Coefficients, highest power first: 1,-3,2 x: 3
Example result
{
"value": 2,
"degree": 2
}Limitations and details
Accepts 1–1000 coefficients; enter numeric coefficients rather than an algebraic expression, and expect floating-point results.
Inputs and options
- Coefficients, highest power first
- Text
- x
- Number
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.