Find Code:
All Words
Any of the Words
Exact Phrase
Home
:
Code
:
Forums
:
Submit
:
Mailing List
:
About
:
Contact
Code
All
VB.NET
ASP.NET
C#
VB Classic
ASP Classic
Snippets
Popular
Resources
Submit Code
Forums
Articles
Tips
Links
Books
Contest
Link to us
Functions for performing all the derived math rout...
Author:
Andrew Gray
Website:
http://www.andrewgray.com
Submitted:
8/18/2001
Version:
VB4
Compatibility:
VB4, VB5, VB6
Category:
Mathematics
Views:
13719
Functions for performing all the derived math routines listed in the Microsoft documentation.
Declarations:
'none
Code:
Public Function Sec(ByVal X As Double) As Double ' Secant Sec = 1 / Cos(X) End Function Public Function Cosec(ByVal X As Double) As Double ' Cosecant Cosec = 1 / Sin(X) End Function Public Function Cotan(ByVal X As Double) As Double ' Cotangent Cotan = 1 / Tan(X) End Function Public Function Arcsin(ByVal X As Double) As Double 'Inverse Sine If Abs(X) = 1 Then Arcsin = Atn(1) * Sgn(X) * 2 Else Arcsin = Atn(X / Sqr(-X * X + 1)) End If End Function Public Function Arccos(ByVal X As Double) As Double ' Inverse Cosine If Abs(X) = 1 Then Arccos = Atn(1) * (1 - Sgn(X)) * 4 Else Arccos = Atn(-X / Sqr(-X * X + 1)) + 2 * Atn(1) End If End Function Public Function Arcsec(ByVal X As Double) As Double ' Inverse Secant If Abs(X) = 1 Then Arcsec = Atn(1) * Sgn(X) * 4 Else Arcsec = Atn(X / Sqr(X * X - 1)) + Sgn((X) - 1) * (2 * Atn(1)) End If End Function Public Function Arccosec(ByVal X As Double) As Double ' Inverse Cosecant If Abs(X) = 1 Then Arccosec = Atn(1) * (Sgn(X) * 4 - 2) Else Arccosec = Atn(X / Sqr(X * X - 1)) + (Sgn(X) - 1) * (2 * Atn(1)) End If End Function Public Function Arccotan(ByVal X As Double) As Double ' Inverse Cotangent Arccotan = Atn(X) + 2 * Atn(1) End Function Public Function HSin(ByVal X As Double) As Double ' Hyperbolic Sine HSin = (Exp(X) - Exp(-X)) / 2 End Function Public Function HCos(ByVal X As Double) As Double ' Hyperbolic Cosine HCos = (Exp(X) + Exp(-X)) / 2 End Function Public Function HTan(ByVal X As Double) As Double ' Hyperbolic Tangent HTan = (Exp(X) - Exp(-X)) / (Exp(X) + Exp(-X)) End Function Public Function HSec(ByVal X As Double) As Double ' Hyperbolic Secant HSec = 2 / (Exp(X) + Exp(-X)) End Function Public Function HCosec(ByVal X As Double) As Double ' Hyperbolic Cosecant HCosec = 2 / (Exp(X) - Exp(-X)) End Function Public Function HCotan(ByVal X As Double) As Double ' Hyperbolic Cotangent HCotan = (Exp(X) + Exp(-X)) / (Exp(X) - Exp(-X)) End Function Public Function HArcsin(ByVal X As Double) As Double ' Inverse Hyperbolic Sine HArcsin = Log(X + Sqr(X * X + 1)) End Function Public Function HArccos(ByVal X As Double) As Double ' Inverse Hyperbolic Cosine HArccos = Log(X + Sqr(X * X - 1)) End Function Public Function HArctan(ByVal X As Double) As Double ' Inverse Hyperbolic Tangent HArctan = Log((1 + X) / (1 - X)) / 2 End Function Public Function HArcsec(ByVal X As Double) As Double ' Inverse Hyperbolic Secant HArcsec = Log((Sqr(-X * X + 1) + 1) / X) End Function Public Function HArccosec(ByVal X As Double) As Double ' Inverse Hyperbolic Cosecant HArccosec = Log((Sgn(X) * Sqr(X * X + 1) + 1) / X) End Function Public Function HArccotan(ByVal X As Double) As Double ' Inverse Hyperbolic Cotangent HArccotan = Log((X + 1) / (X - 1)) / 2 End Function Public Function LogN(ByVal X As Double, ByVal N As Double) As Double ' Logarithm to base N LogN = Log(X) / Log(N) End Function
Home
|
Forums
|
Submit
|
Books
|
Mailing List
|
Advertising
|
About
|
Contact
© 2024 A1VBCode. All rights reserved.
Legal disclaimer & terms of use
Privacy statement