- [x] sum with NaN support - [x] product with NaN support - [x] sigmoid - [x] select - [x] replace - [x] lock - [x] unlock - [x] dog - [x] sat - [x] wrap - [x] unwrap - [x] ycbcr2rgb - [x] rgb2ycbcr - [x] fftInPlace, fft2InPlace, fft3InPlace - [x] ifftInPlace, ifft2InPlace, ifft3InPlace - [x] fft_r2c, fft2_r2c, fft3_r2c - [x] fft_c2r, fft2_c2r, fft3_c2r - [ ] saveArray - [x] readArray - [x] toString (`__repr__`, `__str__`) - [x] af.display extended with precision parameter - [x] nearestNeighbour - [x] harris - [x] susan - [x] svd, svdInPlace --- C++ only functions - copy (not added)