30mm to 20mm Spacer - fits for FETtec ESC 4in1 - 6S 35A

thingiverse

Conversion between 30x30 and 20x20 matrices is a straightforward process that can be accomplished through several methods. One approach involves using matrix multiplication, where the resulting 20x20 matrix is obtained by multiplying the original 30x30 matrix with an appropriate transformation matrix. Another method utilizes singular value decomposition (SVD), which decomposes the 30x30 matrix into three matrices: U, Σ, and V. The 20x20 matrix can then be reconstructed from these components. Alternatively, one can use the PCA (Principal Component Analysis) technique to reduce the dimensionality of the original data while retaining most of its variance. Each of these methods has its own strengths and weaknesses, and the choice of approach depends on the specific requirements of the problem at hand.