/usr/lib/pd/extra/mapping/spherical2cartesian.pd is in pd-mapping 0.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #N canvas 310 22 686 438 10;
#X obj 397 395 outlet z;
#X obj 267 12 inlet phi;
#X obj 14 391 outlet x;
#X obj 207 395 outlet y;
#X obj 107 99 purepd/float_argument \$1;
#X obj 267 99 purepd/float_argument \$2;
#X obj 427 99 purepd/float_argument \$3;
#X obj 17 12 inlet r;
#X obj 427 12 inlet theta;
#X obj 316 56 loadbang;
#X obj 107 169 pack float float float;
#X obj 107 190 trigger anything anything anything;
#X obj 14 338 expr $f1 * sin($f2) * cos($f3);
#X obj 397 338 expr $f1 * cos($f2);
#X obj 207 338 expr $f1 * sin($f2) * sin($f3);
#X obj 397 314 unpack float float float;
#X obj 427 125 mapping/mapping2radians;
#X obj 267 125 mapping/mapping2radians;
#X text 390 413 released under the GNU GPL;
#X text 43 413 (C) Copyright 2008 Hans-Christoph Steiner <hans@at.or.at>
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