Sign of reflection coefficient $E_r/E_i$ at normal incidence!
13999
Phase difference in reflection coefficient between S and P polarisation at normal incidence?
69854
Why is there a minus sign in this wave equation derivation?
155398
Normal Artifacts On Grazing Angles
13020
Proof for the funky trace derivative : $d (\operatorname{trace} (ABA'C))$?
142660
Why is angle of incidence equal to angle of reflection?
93312
Fourier transform of the indicator of the unit ball
7932
$(p\!-\!1\!-\!h)!\,h! \equiv (-1)^{h+1}\!\!\pmod{\! p}\,$ [Wilson Reflection Formula]
71442
How to prove $\det(I+uv^\intercal)=1+v^\intercal u$
103501
Question about a normal equation proof
136595
Wave reflection and open end boundary condition intuition
120857
Interpreting the Cross Section Ratio $R$
75694
The Schwarz Reflection Principle for a circle
87931
Sign convention for mirror and lens formulas
73131
Derivation of the gaussian integral
27778
Eigenvalues of a real skew symmetric matrix
116841
Reflection is quad dependent and looks non realistic
64432
Physical or geometric meaning of the trace of a matrix