> On at least 2 of these problems Schaums and Axiom seem to disagree
> on the results, namely:
> 14:569 SCHAUMS AND AXIOM DISAGREE?
> 14:571 SCHAUMS AND AXIOM DISAGREE?
> as the compute result is not constant but does not seem to have a
> simplification that eliminates x.
> This needs to be studied further.
>
> ---S 10 of 28
> +--S 31
> aa:=integrate(1/cosh(a*x)^2,x)
> --R
> --R
> @@ -211,6 +406,176 @@ aa:=integrate(1/cosh(a*x)^2,x)
> --R a sinh(a x) + 2a cosh(a x)sinh(a x) + a cosh(a x) + a
> --R Type: Union(Expression
> Integer,...)
> --E
> +
> +--S 32
> +bb:=tanh(a*x)/a
I get:
normalize(integrate(1/cosh(a*x)^2,x) - tanh(a*x)/a)
1
(14) - -
a
Type: Expression Integer
so it seems that the difference really is a constant.
--
Waldek Hebisch
[EMAIL PROTECTED]
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