Regarding mathlab's reading of the . operator after a number I know that, for example, that if i introduce it when miltuplying two matrixes A.*B of the same dimentions Mathlab will yield a matrix that has multiplied each entry like so A[i,i]*B[i,i].
When introducing values
the following values:
printing e yields -1.110223024625157e-16
but when I do x+x+x it yields = 0.5
Why doesn't e yield 0?
I know it has to do with something of the sort of the matrix problem but i do not know for certain and floating point arithmetic but i do not know for certain.