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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

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man/signal/%sn.man
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.TH %sn 1 "April 1993" "Scilab Group" "Scilab Function"
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.so ../sci.an
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.SH NAME
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%sn - Jacobi 's elliptic function
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.SH CALLING SEQUENCE
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.nf
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[y]=%sn(x,m)
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.fi
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.SH PARAMETERS
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.TP
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x
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: a point inside the fundamental rectangle  defined by the elliptic integral;
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\fVx\fR is a vector of complex numbers
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.TP
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m
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: parameter of the elliptic integral (\fV0<m<1\fR)
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.TP
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y
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: result
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.SH DESCRIPTION
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Jacobi 's sn elliptic function with parameter \fVm\fR: the inverse 
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of the elliptic integral for the parameter \fVm\fR.
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.LP
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The amplitude am is computed in fortran and 
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the addition formulas for elliptic functions are applied
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.SH EXAMPLE
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.nf
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m=0.36;
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K=%k(m);
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P=4*K; //Real period
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real_val=0:(P/50):P;
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plot(real_val,real(%sn(real_val,m)))
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xbasc();
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KK=%k(1-m);
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Ip=2*KK;
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ima_val1=0:(Ip/50):KK-0.001;
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ima_val2=(KK+0.05):(Ip/25):(Ip+KK);
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z1=%sn(%i*ima_val1,m);z2=%sn(%i*ima_val2,m);
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plot2d([ima_val1',ima_val2'],[imag(z1)',imag(z2)']);
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xgrid(3)
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.fi
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.SH SEE ALSO
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%asn, %k
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.SH AUTHOR
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F. D.