Difference between revisions of "Manuals/calci/IMAGINARY"

Revision as of 01:11, 25 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.

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 <div style="font-size:30px">'''IMAGINARY(z)'''</div><br/>
-*where 'z' is the complex number is in the form a+bi.
+*<math>z</math> is the complex number is in the form <math>a+bi</math>.
 ==Description==
 *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).
+*Imaginary number is a real number which is multiplied with the imaginary unit <math>i</math>, where <math>i=\sqrt(-1)</math>.
-*When imaginary number bi is get adding to the real number a, then it is form a complex number.
+*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 bi, it will give the negative real number -b^2.
+*Also when we are squaring the imaginary number <math>bi</math>, it will give the negative real number <math>{-b}^2</math>.
-*For eg (5i)^2=-25.We can use COMPLEX function to convert the real and imginary coefficients to a complex number.
+*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.
 ==Examples==
 #IMAGINARY("2+3i")=3
 #IMAGINARY("4-5i")=-5
 #IMAGINARY("3j")=3