id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13445	Manual entry for abs function of vector space algebra differs from implementation	jan@…	karsten	"The manual entry for a vector space algebra definition in boost odeint states that the return value of the abs function necessary for controlled steppers must be of state type.
http://www.boost.org/doc/libs/1_66_0/libs/numeric/odeint/doc/html/boost_numeric_odeint/odeint_in_detail/state_types__algebras_and_operations.html#boost_numeric_odeint.odeint_in_detail.state_types__algebras_and_operations.algebras_and_operations.vector_space_algebra
This works only for fundamental types as described in the following stackoverflow entry.
https://stackoverflow.com/questions/44566641/boost-odeint-controlled-stepper-with-custom-class-and-vector-space-algebra
For custom types it only compiles when the return value of the abs function is of value type.
This would also correspond to the mathematical understanding of the absolute value defined in a vector space."	Bugs	new	To Be Determined	odeint	Boost 1.66.0	Problem		odeint manual