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projection about a line
use direction vector
reflection about a line formula
2Proj - Identity
how to check if a matrix is a reflection (reflection transformation)
If your matrix resembles this then you can try:
a²+b²=1
if true = reflection
det(2B) how to calculate?
2^n * det(B) where n = rows/size
linearly independant gaussian format
staircase of 1’s
can have totally 0 row
probability at infinity
Px = x (P = transition matrix)
x+y=1
proving linear transformations (formulas)
T(x+y)=T(x)+T(y)
T(cx)=cT(x)
signage and junctions: resistor networks
Resistors: current touches positive side of resistor → positive
Battery: current touches negative side → negative
Current coming in - opposing current
ccw rotation
cw rotation
reflection angle matrix
projection angle matrix
matrix multiplication requirements
#cols A = #rows B
row by col
