[Solved] tan function giving incorrect values in matlab [closed] September 24, 2022 by Kirat It seems like you provide the argument to tan in degrees. However, Matlab expects its input in radians. Try: >> tan( pi / 4 ) If you insist on using degrees, you’ll find tand useful: >> tand( 45 ) Remember rad = deg * pi / 180 solved tan function giving incorrect values in matlab [closed]