![Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents](https://i.redd.it/hi4j8vrkndb71.jpg)
Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents
![Amazon.com : IPepul Scientific Calculators for Students, 10-Digit Large Screen,Math Calculator with Notepad for Middle High School& College(Black) : Office Products Amazon.com : IPepul Scientific Calculators for Students, 10-Digit Large Screen,Math Calculator with Notepad for Middle High School& College(Black) : Office Products](https://m.media-amazon.com/images/I/71WMEw-XOuL._AC_UF894,1000_QL80_.jpg)
Amazon.com : IPepul Scientific Calculators for Students, 10-Digit Large Screen,Math Calculator with Notepad for Middle High School& College(Black) : Office Products
![Amazon.com : Scientific Calculator,w/Equation Recall ,3-1/5"x6-1/10"x3/4", Sold as 1 each : Scientific Calculators : Office Products Amazon.com : Scientific Calculator,w/Equation Recall ,3-1/5"x6-1/10"x3/4", Sold as 1 each : Scientific Calculators : Office Products](https://m.media-amazon.com/images/I/61U6nwRg53L.jpg)
Amazon.com : Scientific Calculator,w/Equation Recall ,3-1/5"x6-1/10"x3/4", Sold as 1 each : Scientific Calculators : Office Products
![Amazon.com : Scientific Calculators,Lvesunny Multifunctional Scientific Calculator with Notepad, 10-Digit Large Screen, Perfect School Supplies for Students, Ideal for Basic Math Learning(Black) : Office Products Amazon.com : Scientific Calculators,Lvesunny Multifunctional Scientific Calculator with Notepad, 10-Digit Large Screen, Perfect School Supplies for Students, Ideal for Basic Math Learning(Black) : Office Products](https://m.media-amazon.com/images/I/617Zb0vDlRL._AC_UF894,1000_QL80_.jpg)
Amazon.com : Scientific Calculators,Lvesunny Multifunctional Scientific Calculator with Notepad, 10-Digit Large Screen, Perfect School Supplies for Students, Ideal for Basic Math Learning(Black) : Office Products
![The Tan Inverse Button. How To Work Out The Inverse Tan On A Casio Classwiz fx GT85x Calculator - YouTube The Tan Inverse Button. How To Work Out The Inverse Tan On A Casio Classwiz fx GT85x Calculator - YouTube](https://i.ytimg.com/vi/2O-cMtG5rxw/maxresdefault.jpg)