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-rw-r--r--test/bisect.lua3
1 files changed, 3 insertions, 0 deletions
diff --git a/test/bisect.lua b/test/bisect.lua
index 4de9e99b..9e1d8f70 100644
--- a/test/bisect.lua
+++ b/test/bisect.lua
@@ -18,9 +18,12 @@ function solve(f,a,b)
write(format("after %d steps, root is %.10g, f=%g\n",n,z,f(z)))
end
+-- an example
+
-- our function
function f(x)
return x*x*x-x-1
end
+-- find zero in [1,2]
solve(f,1,2)