atan(-100.0000000)=
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-89.4273°=
-90°25'38"
atan(-99.9982541)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9965082)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9947623)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9930164)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9912705)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9895246)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9877787)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9860328)=
-1.5608(rad)=
-89.4273°=
-90°25'38"
atan(-99.9842869)=
-1.5608(rad)=
-89.4273°=
-90°25'38"