Python NumPy (Prototype Project 01) - Intro to Linear Algebra

►screenshots: https://prototypeprj.blogspot.com/2020/09/python-numpy-tutorial-01-intro-to.html 00:05 demo a prebuilt version of the application 00:21 add 2 matrices (both must have same size. add elements in same position) 01:04 subtract 2 matrices (both must have same size. subtract elements in same position) 01:30 multiply 2 matrices (both must have matching inner dimension. size of resulting matrix obtained by dropping middle dimension) 02:19 step by step example of multiplying 2 matrices 04:10 scalar add (operation applied to each element in matrix) 04:44 scalar subtract (operation applied to each element in matrix) 05:04 scalar multiply (operation applied to each element in matrix) 05:22 scalar divide (operation applied to each element in matrix) 05:42 identity matrix contains all 0s except diagonal is 1s (multiply matrix by identity matrix and obtain original matrix) 06:45 transpose matrix by flipping it along diagonal. rows become columns and columns become rows 07:20 dot product happens between 2 vectors (here we do element-wise multiplication than sum up results) 08:54 NumPy setup using miniconda 09:22 code the application 09:26 represent matrix as 2 dimensional array 09:39 add and subtract matrices in NumPy 09:58 multiply matrices in NumPy 10:07 matrix scalar operations in NumPy 10:33 identity matrix operation in NumPy 10:55 transpose matrix operation in NumPy 11:01 dot product matrix operation in NumPy 11:25 vector matrix ► get access to members-only video contents + support: https://www.youtube.com/channel/UCUvwlMMaeppKPdtAK8PxO8Q/join ► website + download source code: https://prototypeprj.com https://ai.prototypeprj.com https://crypto.prototypeprj.com ► download directly: download ai source code @ https://sites.fastspring.com/prototypeprj/instant/ai download crypto source code @ https://sites.fastspring.com/prototypeprj/instant/crypto download source code (old) page # 2 @ https://sites.fastspring.com/prototypeprj/instant/2020 download source code (older) page # 1 @ https://sites.fastspring.com/prototypeprj/instant/all