schemes -> operator/inverse operator
This is more a discussion: should the 'scheme' classes be separated into the 'apply' part and the 'solve' part? At least there should be a way to fix the type of the inverse solver used/
This is more a discussion: should the 'scheme' classes be separated into the 'apply' part and the 'solve' part? At least there should be a way to fix the type of the inverse solver used/