Difference between revisions of "Manuals/calci/MAKECOMPLEXIMINUS"

Revision as of 16:23, 18 July 2018

MAKECOMPLEXIMINUS (Real,Imaginary)

MAKECOMPLEXIMINUS function converts the imaginary coefficient of a complex number into 'negative' coefficient.
A complex number is a combination of a real and an imaginary number.
A number which is positive or negative, rational or irrational or decimals are called real numbers.
An Imaginary number is a number that when squring it gives a negative result.
For e.g. ${-4}^{2}=16$ . Because a negative times a negative is positive.
A complex number is in the form $z=a+bi$ , where $a$ and $b$ are real numbers and $i$ is the imaginary unit. Where $i={\sqrt {-1}}$
To mention $i$ and $j$ , we must use the lower case only
In a complex number $z$ real part is denoted by $Re(z)$ & imaginary part is denoted by $Im(z)$ .
MAKECOMPLEXIMINUS returns the error value, when $Real$ and $Imaginary$ are non-numeric.
A Complex number whose real part is zero is said to be purely imaginary.
A Complex number whose imaginary part is zero is a real number. In that cases we have to assign '0' for that part.

$MAKECOMPLEXIMINUS(Real,Imaginary)$

=MAKECOMPLEXIMINUS(4,5) = 4-i5
=MAKECOMPLEXIMINUS(4,-5) = 4+i5
=MAKECOMPLEXIMINUS(1,10,"j") = 1-j10
=MAKECOMPLEXIMINUS(1,0) = 1+i0
=MAKECOMPLEXIMINUS(1..3,5) = 1-i5 ; 2-i5; 3-i5

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 *To mention <math>i</math> and <math>j</math>, we must use the lower case only
 *In a complex number <math>z</math> real part is denoted by <math>Re(z)</math> & imaginary part is denoted by <math>Im(z)</math>.
-*MAKECOMPLEXIMINUS returns the error value, when <math>real</math> and <math>imaginary</math> are non-numeric.
+*MAKECOMPLEXIMINUS returns the error value, when <math>Real</math> and <math>Imaginary</math> are non-numeric.
-*<math>Suffix</math> should be either <math>i</math> or <math>j</math>, otherwise it shows error value.
 *A Complex number whose real part is zero is said to be purely imaginary.
 *A Complex number whose imaginary part is zero is a real number. In that cases we have to assign '0' for that part.