Precalc - Quadrant for Angles (Radians as Multiple of pi)
運算式 4: "a" equals 4a=4
negative 10−10
1010
4
運算式 5: "b" equals 6b=6
negative 10−10
1010
5
運算式 6: phi left parenthesis, "t" , right parenthesis equals StartFraction, "a" Over "b" , EndFraction times pi times "z" left parenthesis, "t" , right parenthesisϕt=ab·π·zt
