From 27ad2f623f3af6a70a9ab1244a7c3384db6fe8ad Mon Sep 17 00:00:00 2001
From: Stephane Letz <letz@grame.fr>
Date: Sat, 5 Dec 2020 10:36:16 +0100
Subject: [PATCH] More efficient si.interpolate implementation, cleanup.

---
 basics.lib  | 20 ++++++++++----------
 signals.lib |  2 +-
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/basics.lib b/basics.lib
index fa2dc16c..af5f74ec 100644
--- a/basics.lib
+++ b/basics.lib
@@ -106,7 +106,7 @@ sec2samp(d) = d*ma.SR;
 //
 // * `l`: loudness in dB
 //-----------------------------
-db2linear(l) = pow(10, l/20.0);
+db2linear(l) = pow(10.0, l/20.0);
 
 
 //-------`(ba.)linear2db`----------
@@ -554,7 +554,7 @@ pulse_countdown(trig) = - ~ _ * trig;
 //
 // Where:
 //
-// * `n`: the highest number of the countup (included) before reset to 0.
+// * `n`: the highest number of the countup (included) before reset to 0
 // * `trig`: the trigger signal (1: start at next pulse; 0: reset to 0)
 //------------------------------------------------------------------------------
 //TODO: author "Vince"
@@ -596,7 +596,7 @@ resetCtr(n,m) = _ <: (_,pulse_countup_loop(n-1,1)) : (_,(_==m)) : *;
 //
 // Where:
 //
-// * `n`: the highest number of the countup (included) before reset to 0.
+// * `n`: the highest number of the countup (included) before reset to 0
 // * `trig`: the trigger signal (1: start at next pulse; 0: reset to 0)
 //------------------------------------------------------------------------------
 //TODO: author "Vince:
@@ -976,7 +976,7 @@ with {
 // ```
 //
 // In any case the `x_{i}` must be in increasing order (for all `i`, `x_{i} < x_{i+1}`).
-// For example the following definition :
+// For example the following definition:
 //
 // ```
 // f = bpf.start(x0,y0) : ... : bpf.point(xi,yi) : ... : bpf.end(xn,yn);
@@ -1629,7 +1629,7 @@ slidingRMSp(n,maxn) = pow(2) : slidingMeanp(n,maxn) : sqrt;
 // where:
 //
 // * `n`: the number of parallel inputs
-// * `op`: the operator. needs to be a commutative one.
+// * `op`: the operator which needs to be a commutative
 //
 //------------------------------------------------------------------------------
 
@@ -1638,7 +1638,7 @@ parallelOp(op,2) = op;
 parallelOp(op,n) = op(parallelOp(op,n-1));
 
 //---------------------------`(ba.)parallelMax`---------------------------------
-// The maximum of n parallel inputs
+// The maximum of n parallel inputs.
 //
 // #### Usage
 //
@@ -1653,7 +1653,7 @@ parallelOp(op,n) = op(parallelOp(op,n-1));
 parallelMax(n) = parallelOp(max,n);
 
 //---------------------------`(ba.)parallelMin`---------------------------------
-// The minimum of n parallel inputs
+// The minimum of n parallel inputs.
 //
 // #### Usage
 //
@@ -1668,7 +1668,7 @@ parallelMax(n) = parallelOp(max,n);
 parallelMin(n) = parallelOp(min,n);
 
 //---------------------------`(ba.)parallelMean`---------------------------------
-// The mean of n parallel inputs
+// The mean of n parallel inputs.
 //
 // #### Usage
 //
@@ -1683,7 +1683,7 @@ parallelMin(n) = parallelOp(min,n);
 parallelMean(n) = si.bus(n):>_/n;
 
 //---------------------------`(ba.)parallelRMS`---------------------------------
-// The RMS of n parallel inputs
+// The RMS of n parallel inputs.
 //
 // #### Usage
 //
@@ -1695,7 +1695,7 @@ parallelMean(n) = si.bus(n):>_/n;
 //
 // * `n`: the number of parallel inputs
 //------------------------------------------------------------------------------
-parallelRMS(n) = par(i, n, pow(2)):parallelMean(n) : sqrt;
+parallelRMS(n) = par(i, n, pow(2)) : parallelMean(n) : sqrt;
 
 
 //////////////////////////////////Deprecated Functions////////////////////////////////////
diff --git a/signals.lib b/signals.lib
index b2a666de..60d69e16 100644
--- a/signals.lib
+++ b/signals.lib
@@ -97,7 +97,7 @@ block(n) = par(i, n, !);
 //
 // * `i`: interpolation control between 0 and 1 (0: first input; 1: second input)
 //-----------------------------------------------------------------------------
-interpolate(i) = *(1.0-i),*(i) : +;
+interpolate(i,x,y) = x + i*(y-x);  
 
 //------------------------`(si.)smoo`---------------------------------------
 // Smoothing function based on `smooth` ideal to smooth UI signals