I am surprised this works. Sagemath 8.9
sage: var('x')
x
sage: integrate("x",x)
1/2*x^2
sage: type("x")
<type 'str'>
Why does sagemath accept string for the integrand? Should not this be type error? Maple:
restart
int("x",x)
Error, (in int) wrong number (or type) of arguments: wrong type of integrand passed to indefinite integration.
