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authorwukong <wukong@longaeva>2026-05-03 13:10:31 -0700
committerwukong <wukong@longaeva>2026-05-03 13:10:31 -0700
commitb60f09401a15721f626bcb7c852f68b82fe39c1c (patch)
tree0fa5ed72ec96c8b0cc83699a0497761c9ec0eed7 /fir_window_gaussian.awk
parente3f9ccd5303c516d2e1c48112d8b52609ce4ad5e (diff)
replaced sum[1-4].awk with serial and columnar versions;
minor merge updates between fir_window scripts;
Diffstat (limited to '')
-rw-r--r--fir_window_gaussian.awk4
1 files changed, 2 insertions, 2 deletions
diff --git a/fir_window_gaussian.awk b/fir_window_gaussian.awk
index 14ebc48..cf2dd12 100644
--- a/fir_window_gaussian.awk
+++ b/fir_window_gaussian.awk
@@ -1,7 +1,7 @@
#!/usr/bin/awk -f
### fir_window_gaussian.awk
-# generate a Gaussian window
+# generate a Gaussian FIR window
# https://en.wikipedia.org/wiki/Window_function
@@ -21,7 +21,7 @@ BEGIN {
# window interval goes from -M to M
M = 0.5*(N - 1)
- pi = 4*atan2(1,1)
+ pi = 4.0*atan2(1.0, 1.0)
for (n=0; n<N; n++) {
if (N > 1 && M > 0) {