functions from abcd.m now in separate files

Ignore-this: 33d046a6087834ae6c896966261af8e3

darcs-hash:20110414140151-067c0-7ee6687ce86608989ad7b9b2b1db276c7c11dbc2

1 files changed, 5 insertions, 0 deletions

diff --git a/wr2q.m b/wr2q.m
new file mode 100644
index 0000000..50b2ad7
--- /dev/null
+++ b/wr2q.m
@@ -0,0 +1,5 @@
+function q=wr2q(waste,R,lambda)
+% convert Gaussian beam waste and radius to q parameter
+	q=1./(1./R-1i.*lambda./pi./(waste.^2));
+endfunction
+