revised help docs that conform to the PDDP template

svn path=/trunk/; revision=13942

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diff --git a/doc/pddp/biquad~-help.pd b/doc/pddp/biquad~-help.pd
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+#X text 12 105 PLATFORM windows macosx gnulinux;
+#X text 12 165 LIBRARY internal;
+#X text 12 205 WEBSITE http://crca.ucsd.edu/~msp/;
+#X text 12 65 LICENSE SIBSD;
+#X text 12 185 AUTHOR Miller Puckette;
+#X text 12 265 HELP_PATCH_AUTHORS Updated for Pd version-0.30. Jonathan
+Wilkes revised the patch to conform to the PDDP template for Pd version
+0.42.;
+#X text 12 5 GENRE help;
+#X text 12 45 KEYWORDS signal filters;
+#X text 12 85 DESCRIPTION 2-pole-2-zero-filter;
+#X text 12 145 OUTLET_0 signal;
+#X text 12 125 INLET_0 list signal set clear;
+#X text 12 25 NAME biquad~;
+#X text 12 225 RELEASE_DATE 2009;
+#X text 12 245 RELEASE_VERSION;
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+#X text 7 1 [biquad~] Related Objects;
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+#X obj 445 20 pddp/pddplink http://wiki.puredata.info/en/biquad~ -text
+pdpedia: biquad~;
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+#X obj 155 183 biquad~ 1.41407 -0.9998 1 -1.41421 1;
+#X msg 155 99 1.41407 -0.9998 1 -1.41421 1;
+#X text 220 237 (= SR/8 = 5512.5 Hz @44.1k);
+#X text 167 77 list sets filter parameters;
+#X msg 190 129 set 0 0;
+#X msg 191 154 clear;
+#X obj 66 138 osc~ 5512.5;
+#X text 260 131 set internal state;
+#X text 258 153 ... or just clear it;
+#X text 98 350 list;
+#X text 98 330 signal;
+#X text 98 370 set;
+#X text 98 390 clear;
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+#X text 98 426 signal;
+#X text 169 503 y(n) = ff1 * w(n) + ff2 * w(n-1) + ff3 * w(n-2);
+#X text 169 519 w(n) = x(n) + fb1 * w(n-1) + fb2 * w(n-2);
+#X text 169 541 Syntax: biquad~ fb1 fb2 ff1 ff2 ff3;
+#X text 59 267 Compare the value of the straight signal on the left
+with the value of the filtered signal on the right.;
+#X text 11 23 2-pole-2-zero-filter;
+#X text 169 472 - [biquad~] takes five floats as arguments which are
+used to calculate the following difference equation:;
+#X text 168 370 - set internal state.;
+#X text 168 390 - clear the internal state.;
+#X text 85 472 5 floats;
+#X text 214 218 this [biquad~] is a notch filter for fn = Pi/4;
+#X text 168 350 - a list of 5 floats is used to set filter parameters.
+;
+#X text 168 330 - the incoming signal;
+#X text 168 426 - the outgoing signal;
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