Doubt in a concept

#1

at 4:20 in the video, its written :
y_=T1 [i,j] * X + T0
but shape of T1 is (80,80) and shape of X is (3750,1)
so how are we doing the matrix multiplication here ?

#2

hey @ishabehera we are performing broadcating here not matrix multiplication.T1[i,j] refers to here as T1[i][j]. so we are multiplying element at T1[i][j] with each element in matrix X.

#3

T[i][j] will have 40x40 distinct values. so each value will get multiplied with each element of X ?

#4

Sagar @sagartiwari1711