Concepts2
⚙️AlgorithmAdvanced
NTT (Number Theoretic Transform)
The Number Theoretic Transform (NTT) is an FFT-like algorithm that performs discrete convolutions exactly using modular arithmetic instead of floating-point numbers.
#ntt#number theoretic transform#polynomial multiplication+11
⚙️AlgorithmAdvanced
FFT (Fast Fourier Transform)
FFT converts a polynomial from coefficients to values at the n-th roots of unity in O(n log n) time, enabling fast multiplication via pointwise products.
#fft#polynomial multiplication#convolution+11