![linear algebra - For the purposes of DFT, is "the" primitive root of unity $w_n = e^{ 2\pi i / n }$ or $w_n = e^{-2\pi i / n }$? - Mathematics Stack Exchange linear algebra - For the purposes of DFT, is "the" primitive root of unity $w_n = e^{ 2\pi i / n }$ or $w_n = e^{-2\pi i / n }$? - Mathematics Stack Exchange](https://i.stack.imgur.com/Kunb8.png)
linear algebra - For the purposes of DFT, is "the" primitive root of unity $w_n = e^{ 2\pi i / n }$ or $w_n = e^{-2\pi i / n }$? - Mathematics Stack Exchange
![a) Matrix T of N Â 1 dimension and (b) discrete Fourier transform of... | Download Scientific Diagram a) Matrix T of N Â 1 dimension and (b) discrete Fourier transform of... | Download Scientific Diagram](https://www.researchgate.net/publication/229393288/figure/fig1/AS:995164189388800@1614277040162/a-Matrix-T-of-N-A-1-dimension-and-b-discrete-Fourier-transform-of-string-T.png)
a) Matrix T of N Â 1 dimension and (b) discrete Fourier transform of... | Download Scientific Diagram
![linear algebra - For the purposes of DFT, is "the" primitive root of unity $w_n = e^{ 2\pi i / n }$ or $w_n = e^{-2\pi i / n }$? - Mathematics Stack Exchange linear algebra - For the purposes of DFT, is "the" primitive root of unity $w_n = e^{ 2\pi i / n }$ or $w_n = e^{-2\pi i / n }$? - Mathematics Stack Exchange](https://i.stack.imgur.com/Q1FKv.png)