Manuals/calci/IMSQRT

IMSQRT (ComplexNumber)

• $ComplexNumber$ is of the form $z=x+iy$

Description

• This function gives square root of a complex number.
• IMSQRT(ComplexNumber), where complex number is in the form of "x+iy".
• where x&y are the real numbers.$i$ imaginary unit .$i={\sqrt {-1}}$.
• Consider the complex number z.
• The square root of a complex number is defined by:

${\sqrt {z}}={\sqrt {x+iy}}={\sqrt {r.e^{i\theta }}}={\sqrt {{r}(cos({\frac {\theta }{2}})+isin({\frac {\theta }{2}})}}$

• where $r$ is the modulus of $z$. $r={\sqrt {x^{2}+y^{2}}}$
• And $\theta$ is the argument of $z$. $\theta =tan^{-1}(y/x)$ also $\theta \in (-\pi ,\pi ]$.
• We can use COMPLEX function to convert real and imaginary number in to a complex number.

ZOS

• The syntax is to calculate square root of a complex number in ZOS is $IMSQRT(ComplexNumber)$.
  • $ComplexNumber$ is of the form $z=x+iy$
• For e.g.,IMSQRT("9+10i")
• IMSQRT(IMSUB("9+10i","-2-3i"))

Imaginary Square Root

Examples

1. =IMSQRT("2+3i")=1.67414922803554+0.895977476129838i
2. =IMSQRT("-4-5i")=1.09615788950152-2.2806933416653i
3. =IMSQRT("7")=2.6457513110645907+ⅈ0
4. =IMSQRT("8i")=2+2i

Related Videos

IMSQRT

See Also

• IMREAL
• IMSUM
• IMAGINARY
• COMPLEX

References

Binary Logarithm

• List of Main Z Functions

• Z3 home