/usr/lib/open-axiom/input/atansqrt.input is in open-axiom-test 1.4.1+svn~2626-2ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 | --Copyright The Numerical Algorithms Group Limited 1994.
)clear all
-- given
z:=atan sqrt ((1-cos x)/(1+cos x))
-- this should generate x/2
integrate(differentiate(z,x),x)
-- so should this be x/2
rootSimp(normalize(z))
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