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-rw-r--r--pd/extra/expr~/README36
1 files changed, 33 insertions, 3 deletions
diff --git a/pd/extra/expr~/README b/pd/extra/expr~/README
index 28fccf84..bf84f2ae 100644
--- a/pd/extra/expr~/README
+++ b/pd/extra/expr~/README
@@ -1,9 +1,38 @@
-You can get more inofrmation on the expr object at
+You can get more information on the expr object at
http://www.crca.ucsd.edu/~yadegari/expr.html
-----------
+New if Version 0.4
+
+-access to variables (made by value object)
+-multiple expression separated by ;
+-added the following shorthands:
+ $y or $y1 = $y1[-1] and $y2 = $y2[-1]
+-new functions:
+ if - conditional evaluation
+ cbrt - cube root
+ erf - error function
+ erfc - complementary error function
+ expm1 - exponential minus 1,
+ log1p - logarithm of 1 plus
+ isinf - is the value infinite,
+ finite - is the value finite
+ isnan -- is the resut a nan (Not a number)
+ copysign - copy sign of a number
+ ldexp - multiply floating-point number by integral power of 2
+ imodf - get signed integral value from floating-point number
+ modf - get signed fractional value from floating-point number
+ drem - floating-point remainder function
+
+ Thanks to Orm Finnendahl for adding the following functions:
+ fmod - floating-point remainder function
+ ceil - ceiling function: smallest integral value not less than argument
+ floor - largest integral value not greater than argument
+
+------------
+
New in Version 0.3
-Full function functionality
@@ -57,11 +86,12 @@ $x#[n]: the sample from inlet # indexed by n, where n has to
satisfy 0 => n >= -vector size,
($x# is a shorthand for $x#[0], specifying the current sample)
-$y[n]: the output value indexed by n, where n has to
+$y#[n]: the output value indexed by n, where n has to
satisfy 0 > n >= -vector size,
+ $y[n] is a shorthand for $y1[n]
I'll appreciate hearing about bugs, comments, suggestions, ...
Shahrokh Yadegari (sdy@ucsd.edu)
-1/29/02
+7/10/02