
112 Appendix A5 OxGauss Function Summary
etdays(vt1,vt2);
returns the difference in days between two dates
ethsec(vt1,vt2);
returns the difference in hundreds of seconds beween two dates
etstr(hsecs);
returns the text representing the hundreds of seconds hsecs
exctsmpl(infile,outfile,percent);
unsupported
exec(program,cmdline);
operating system call to run program with arguments cmdline
exp(x);
returns exponential of x
export(x,fname,namelist);
unsupported
exportf(dataset,fname,namelist);
unsupported
eye(r);
returns r by r identity matrix
fcheckerr(ifileno);
returns 1 if a read/write error occurred, 0 otherwise
fclearerr(ifileno);
clears the error status of the file
feq(a1,a2);
returns 1 if fuzzy-equal to, 0 otherwise
fflush(ifileno);
flushes the file buffer
fft(x);
returns FFT of x
ffti(f);
returns inverse FFT of f
fftm(mx,dim);
unsupported
fftmi(mx,dim);
unsupported
fftn(mx,dim);
currently identical to fft
fge(ma,mb);
returns 1 if fuzzy-greater-equal to, 0 otherwise
fgets(ifileno,n);
reads upto n characters or end-of-line (whichever comes first)
fgetsa(ifileno,n);
reads upto n lines (or end-of-file), returns an array of strings
fgetsat(ifileno,n);
as fgetsa, but drops newline character
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