Difference between revisions of "Documentation/How Tos/Calc: BESSELI function"
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: returns the modified Bessel function of the first kind, of order <tt>'''n'''</tt>, evaluated at <tt>'''x'''</tt>. | : returns the modified Bessel function of the first kind, of order <tt>'''n'''</tt>, evaluated at <tt>'''x'''</tt>. | ||
| − | : The modified Bessel function of the first kind <tt><i>I<sub>n</sub></i>(<i>x</i>) = <i>i<sup>-n</sup>J<sub>n</sub></i>(<i>ix</i>)</tt>, where <tt><i>J<sub>n</sub></i></tt> is the [[Documentation/How_Tos/Calc: BESSELJ function|Bessel function of the first kind]]. | + | : The modified Bessel function of the first kind <tt><i>I<sub>n</sub></i>(<i>x</i>) = <i>i<sup>-n</sup>J<sub>n</sub></i>(<i>ix</i>)</tt>, where <tt><i>J<sub>n</sub></i></tt> is the * [[Documentation/How_Tos/Calc: BESSELJ function|Bessel function of the first kind]]. |
=== Example: === | === Example: === | ||
| Line 14: | Line 14: | ||
: returns <tt>'''0.565159103992'''</tt>. | : returns <tt>'''0.565159103992'''</tt>. | ||
| − | + | {{Documentation/SeeAlso| | |
| − | + | * [[Documentation/How_Tos/Calc: BESSELJ function|BESSELJ]] | |
| − | + | * [[Documentation/How_Tos/Calc: BESSELK function|BESSELK]] | |
| − | + | * [[Documentation/How_Tos/Calc: BESSELY function|BESSELY]]''' | |
| − | + | * [[Documentation/How_Tos/Calc: Mathematical functions|Mathematical functions]]''' | |
| − | [[Documentation/How_Tos/Calc: Functions listed alphabetically| | + | * [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] |
| − | [[Documentation/How_Tos/Calc: Functions listed by category| | + | * [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} |
=== Issues: === | === Issues: === | ||
* This function currently appears in the AddIn category of the Function Wizard. | * This function currently appears in the AddIn category of the Function Wizard. | ||
Revision as of 13:31, 25 February 2009
BESSELI
Calculates the modified Bessel function of the first kind.
Syntax:
BESSELI(x; n)
- returns the modified Bessel function of the first kind, of order n, evaluated at x.
- The modified Bessel function of the first kind In(x) = i-nJn(ix), where Jn is the * Bessel function of the first kind.
Example:
BESSELI(1; 1)
- returns 0.565159103992.
Template:Documentation/SeeAlso
Issues:
- This function currently appears in the AddIn category of the Function Wizard.
