Matrix Elements VB-800 Manual de usuario descargar pdf (Pagina 113)

Appendix A5

OxGauss Function Summary

abs(a);

returns absolute value of a

arccos(a);

returns arccosine of a

arcsin(a);

returns arcsine of a

arctan,arctan2

see atan,atan2

atan(a);

returns arctangent of a

atan2(y,x);

returns arctangent of y ./ x

{x,s}=balance(a);

returns balanced matrix x and diagonal scale matrix s

band(a,n);

returns banded matrix with bandwidth n (diagonal + n)

bandchol(b);

returns Choleski decomposition of banded matrix

bandcholsol(b,r);

solves system where b is output from bandchol, and r is right-hand side

bandltsol(mb,ma);

as bandsolpd

bandrv(mx);

undoes band()

bandsolpd(mb,ma);

solves system where b band matrix, and r is right-hand side

{mantissa,power}=base10(x);

writes x as m ∗ 10

, −10 <m<10

besselj(n,x);

returns Bessel function J

(x) for integer n

bessely(n,x);

returns Bessel function Y

(x) for integer n

105

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Matrix Elements VB-800 Manual de usuario Pagina 113