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fix atan2 help
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closes pure-data/pddp#262

also makes it clearer for [expr]
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@porres
porres committed Dec 21, 2024
1 parent 1f5d456 commit 7aa06f5
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86 changes: 44 additions & 42 deletions doc/5.reference/expr-help.pd
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#N canvas 537 36 745 701 12;
#N canvas 423 57 745 701 12;
#X declare -stdpath ./;
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#X restore 130 350 pd Power-functions;
#N canvas 241 137 849 422 Trigonometric-functions 0;
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#X floatatom 34 202 5 0 0 0 - - - 0;
#X floatatom 33 233 5 0 0 0 - - - 0;
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#X obj 34 82 expr sin($f1);
#X obj 34 173 expr cos($f1);
#X obj 33 261 expr tan($f1);
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#X floatatom 194 113 5 0 0 0 - - - 0;
#X floatatom 194 145 5 0 0 0 - - - 0;
#X floatatom 194 202 5 0 0 0 - - - 0;
#X obj 194 82 expr asin($f1);
#X obj 194 173 expr acos($f1);
#X text 83 52 sine;
#X text 85 145 cosine;
#X text 84 233 tangent;
#X floatatom 195 229 5 0 0 0 - - - 0;
#X floatatom 195 286 5 0 0 0 - - - 0;
#X text 261 52 arc sine;
#X text 256 145 arc cosine;
#X text 256 229 arc tangent;
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#X obj 264 357 expr atan2($f1 \, $f2);
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#X text 426 357 arc tangent of 2 variables;
#X obj 195 257 expr atan($f1);
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#X floatatom 618 285 5 0 0 0 - - - 0;
#X text 741 66 inverse hyperbolic sine, f 10;
#X obj 617 81 expr asinh($f1);
#X obj 617 172 expr acosh($f1);
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#X text 502 167 hyperbolic cosine, f 10;
#X text 501 76 hyperbolic sine, f 10;
#X text 112 12 All trigonometric functions expect the input in radians (except the arc or inverse ones)., f 89;
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#X text 308 327 y;
#X text 444 328 x;
#X text 426 357 arc tangent of 2 coordinates (y-vertical / x-horizontal), f 28;
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#X restore 130 379 pd Trigonometric-functions;
#N canvas 365 241 592 281 Store-function 0;
#X text 40 26 The store function is defined with "=" \, and it can store the result of any operation into a variable or table index.;
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12 changes: 7 additions & 5 deletions doc/5.reference/trigonometric-help.pd
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#N canvas 364 23 593 484 12;
#N canvas 496 86 593 484 12;
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#X text 97 418 float -;
#X text 109 170 float - input value to the function and output result.;
#X text 110 533 1) float -;
#X text 155 457 right side input ('y' coordinate)., f 56;
#X text 153 418 left side input ('x' coordinate)., f 56;
#X text 188 533 initialize right inlet (default 0).;
#X text 23 16 Trigonometric functions:;
#X text 71 47 - calculate sine (input in radians)., f 66;
#X text 71 70 - calculate cosine (input in radians)., f 66;
#X text 71 93 - calculate tangent (input in radians)., f 66;
#X text 71 117 - calculate arc-tangent (input in radians)., f 66;
#X text 71 328 - calculate arc-tangent from coordinate pairs (x \, y)., f 66;
#X text 155 457 right side input ('x' coordinate)., f 56;
#X text 153 418 left side input ('y' coordinate)., f 56;
#X text 71 328 - calculate arc-tangent from coordinate pairs (y \, x)., f 66;
#X restore 419 21 pd reference;
#X text 517 20 <= click;
#X obj 6 56 cnv 1 585 1 empty empty empty 8 12 0 13 #000000 #000000 0;
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#X text 238 267 The arc tangent ([atan]) takes two forms. The [atan2] version takes a coordinate pair (x \, y) and gives you an an angle in radians between -pi and pi. It also takes a bang message in the left inlet to evaluate the operation with the previously set values., f 47;
#X text 396 115 <-- convert to radians, f 11;
#X text 374 444 updated for Pd version 0.54;
#X text 198 20 - trigonometric functions;
Expand All @@ -73,6 +72,9 @@
#X text 398 409 (etc.) - binary operators;
#X text 50 443 (etc.) - other binary operators;
#X text 359 85 <-- degrees;
#X text 129 226 Y;
#X text 167 226 X;
#X text 234 262 The arc tangent ([atan]) takes two forms. The [atan2] version takes a coordinate pair (y-vertical / x-horizontal) and gives you an angle in radians between -pi and pi. It also takes a bang message in the left inlet to evaluate the operation with the values that were previously set., f 43;
#X connect 0 0 15 0;
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