Graphical representation of a real valued function in the interval where it gives imaginary value


  • Md. Mizanur Rahman Assistant Professor




We are introduced to the graph of a real valued function . But when values of  are imaginary numbers at some points of real axis, we have no graphical representation of the function at those points. This article demonstrates a model where we construct a 3D graph of the function at those points where values of the function are imaginary numbers.


Howard Anton, Irl Bivens, Stephen Davis, Calculus Early Transcendentals, 10th Edition, John Wiley & Sons, Inc., New York, USA, 2012, page# 04.

James Ward Brown and Ruel V. Churchill, Complex Variables and Applications, 8th Edition, McGraw Hill, New York, USA, 2004, page# 93.

View Full Article: