1 | initial version |
Expressions such as $\cos^2 x$, $\sin^2 x$ are shorthand mathematical notation for $(\cos(x))^2$, $(\sin(x))$2$.
In Sage, you have to input them as cos(x)^2
, sin(x)^2
,
as Sage does not parse the above shorthand notation.
The error message you are getting is because Sage thinks
you want sech
to the power 2(k / d ...)
and it is
telling you that the integer 2
is not "callable", as a
function would be (eg if f
is a function, you can
call f(k / d ...)
).
2 | No.2 Revision |
Expressions such as $\cos^2 x$, $\sin^2 x$ are shorthand
mathematical notation for $(\cos(x))^2$, $(\sin(x))$2$.$(\sin(x))^2$.
In Sage, you have to input them as cos(x)^2
, sin(x)^2
,
as Sage does not parse the above shorthand notation.
The error message you are getting is because Sage thinks
you want sech
to the power 2(k / d ...)
and it is
telling you that the integer 2
is not "callable", as a
function would be (eg if f
is a function, you can
call f(k / d ...)
).