Recent content by Kallol

I mean quadrant ambiguity, i,e., if we have an expression of the form tan x =a/b, the signs of a and b determine in which of the 4 quadrants the x lie.

I have the following set of equations from which I need to find δ and φ uniquely (i.e without quadrant ambiguity). In other words I need to have expressions for tan δ and tan φ involving A,B,C and D which are known quantities. A=1-sin(squared) δ/2 x sin 4φ B=1+sin(squared) δ/2 x sin 4φ C=...