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diff --git a/doc/help/cyclone/trapezoid~-help.pd b/doc/help/cyclone/trapezoid~-help.pd
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+#N canvas 1259 367 519 388 10;
+#X declare -lib cyclone;
+#X text 29 14 a trapezoidal wavetable;
+#X text 278 153 args: <up> <down>;
+#X floatatom 96 102 0 0 0 0 - - -;
+#X msg 96 123 hi \$1;
+#X floatatom 34 102 0 0 0 0 - - -;
+#X msg 34 123 lo \$1;
+#X text 262 107 down;
+#X floatatom 139 105 0 0 0 0 - - -;
+#X text 36 40 trapezoid~ is a trapezoidal wavetable with signal inputs
+to change ramp up/down phase position. The default lo/hi points are
+0 and 1 \, but may be changed using the lo/hi messages.;
+#X text 207 107 up;
+#X obj 148 228 Scope~ 130 130 256 3 128 -1 1 0 0 0 0 102 255 51 135
+135 135 0;
+#X obj 257 20 import cyclone;
+#X obj 174 181 Snapshot~ 100;
+#X floatatom 175 206 5 0 0 0 - - -;
+#X obj 149 150 trapezoid~ 0.1 0.9;
+#X obj 263 126 sig~ 0.9;
+#X obj 205 127 sig~ 0.1;
+#X obj 139 126 phasor~ 2;
+#X connect 2 0 3 0;
+#X connect 3 0 14 0;
+#X connect 4 0 5 0;
+#X connect 5 0 14 0;
+#X connect 7 0 17 0;
+#X connect 12 0 13 0;
+#X connect 14 0 10 0;
+#X connect 14 0 12 0;
+#X connect 15 0 14 2;
+#X connect 16 0 14 1;
+#X connect 17 0 14 0;