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"asin" — Arcsine of source."acos" — Arccosine of source."atan" — Arctangent of source."log" — Natural logarithm of source."exp" — Exponential of source."log10" — Log base 10 of source."pow" — The val power of source."copy" — Value of source."rev" — Reversed copy of source."sqrt" — Square root of source."set" — All elements set to the value of val."contract" — Every val points are averaged to make a new point."add" — Source plus val."sub" — Source minus val."mul" — Source times val."div" — Source divided by val.If any of the operations would result in an exception (divide by zero, log orsquare root of a negative number, etc), the operation is not performed and acount of the operations skipped is printed as an error message.data_bop(g0_src, e0_src, g1_src, e1_src, g_dst, e_dst, bop) — Performs thebinary operation specified by the string bop on elements e0_src and e1_srcfor all points in the groups g0_src and g1_src . The results are put in elemente_dst for the corresponding points of group g_dst . The source and destinationgroups and/or elements may be the same. If the number of points in thegroups differ, the operation is carried out on up to the smallest number ofpoints among the groups. Values for bop are:"add" — The sum of the source elements."sub" — Source 0 minus source 1."mul" — The product of the source elements."div" — Source 0 divided by source 1.If the divide would result in an exception, the operation is not performed and acount of the operations skipped is printed as an error message.data_anal(grp, start, npts, el_0, el_1, op [, val ]) — Performs the operationsindicated by op on npts points in group grp ,starting at point start . Theoperations use the values in element el_0 (if applicable) and el_1 . If npts iszero, the operations are performed on points from start to the last point addedusing data_nput() or data_put() .The values for op are:108 REFERENCE MANUAL INTERIM WORK-IN-PROGRESS (8/16/01) NOT FOR GENERAL DISTRIBUTION