Compute Polynomials Twice as Fast
Evaluate a degree-n polynomial with about n/2 multiplications. Type a polynomial, pick ℚ, ℝ, ℂ, a Mersenne prime or a binary field, and get the preprocessed evaluation chain as math, C code or a circuit — everything runs in your browser.
Compute Polynomials Twice as Fast launched on September 9, 2026 with 139 votes, #152 of 8,094 launches that month and more than 95% of that year's launches.
In plain words
Compute Polynomials Twice as Fast is a browser-based tool that evaluates polynomials using approximately half the multiplications required by traditional methods. Users input a polynomial and select from various number systems including rationals, reals, complex numbers, Mersenne primes, or binary fields. The tool outputs preprocessed evaluation chains as mathematical notation, C code, or circuit diagrams. It serves developers and researchers working with polynomial evaluation in cryptography, hashing, coding theory, and function approximation.
written from the facts on this page · September 2026
From the sources
You may have heard about Horner's method, which evaluates a polynomial of degree n in n multiplications ( n −1 if it is monic). But did you know that with a bit of preprocessing of the coefficients, ⌊ n /2⌋+1 multiplications suffice for any monic polynomial , one more for a general one? You can use this to approximate functions like exp, sin, cos, or to evaluate polynomials in cryptography, hashing, and coding theory. Simply type a polynomial below, pick your field, and we'll preprocess it forfrom thomasahle.com
Pricing, as stated on its site
Free — No pricing information found on the website. The tool appears to be completely free to use in the browser with no paid tiers mentioned.
checked September 2026 · prices change
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