A Cos126 Introduction

1. CARTESIAN COMPLEX NUMBERS - Weebly

4.1 INTRODUCTION Let a complex number Z = a + jb as shown in the Argand Diagram below. Let the distance OZ be r and the angle OZ makes with the positive real axis be θ. Imaginary axis Z r jb θ Real axis O a A From the trigonometry of right angle triangle :

  Introduction, Cartesian