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require "narray"
include NMath
def testm x,name
f = "a#{name}(#{name}(x))"
print "\n### #{f} ###\n"
y = eval(f)
p y
#d = x-y
#p d.abs
end
PI=Math::PI
i = NArray.complex(1)
i.imag=1
n=7
x = NArray.complex(n).random!(1)
x.imag= NArray.float(n).random!(1)
p x
testm x,"sin"
testm x,"cos"
testm x,"tan"
testm x,"sinh"
testm x,"cosh"
testm x,"tanh"
testm x,"sec"
testm x,"sech"
p cot(1)
exit
a= -i * log( sqrt(1-x**2)*i + x )
b= -i * log( sqrt(x**2-1) + x )
p a
p b
p a-b
a= -i * log( sqrt(1-x**2) + x*i )
b= -i * log( (-sqrt(x**2-1) + x)*i )
p a
p b
p a-b
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