Difference between revisions of "Manuals/calci/IMAGINARY"

Revision as of 22:54, 26 November 2013

IMAGINARY(z)

This function gives the imaginary coefficient of a complex number.
Imaginary number is a real number which is multiplied with the imaginary unit $i$ , where $i={\sqrt {-1}}$ .
When imaginary number $bi$ is get adding to the real number $a$ , then it forms a complex number.
Also when we are squaring the imaginary number $bi$ , it will give the negative real number ${-b}^{2}$ .
For eg $(5i)^{2}=-25$ . We can use COMPLEX function to convert the real and imaginary coefficients to a complex number.
A complex number is a imaginary number when the real part is zero.

IMAGINARY("2+3i")=3 
IMAGINARY("4-5i")=-5
IMAGINARY("3j")=3
IMAGINARY("7")=0

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 *When imaginary number <math>bi</math> is get adding to the real number <math>a</math>, then it forms a complex number.
 *Also when we are squaring the imaginary number <math>bi</math>, it will give the negative real number <math>{-b}^2</math>.
-*For eg <math>(5i)^2=-25</math>. We can use [[Manuals/calci/COMPLEX | COMPLEX]]function to convert the real and imaginary coefficients to a complex number.
+*For eg <math>(5i)^2=-25</math>. We can use [[Manuals/calci/COMPLEX | COMPLEX]] function to convert the real and imaginary coefficients to a complex number.
 *A complex number is a imaginary number when the real part is zero.