11. Note that fudget composition must be read from right to left, as a simple function composition . 12. The group with respect to function composition , called the "'isometry group " '. 13. It combines two approaches : functional programming and algebraic block diagrams, which are constructed via function composition . 14. Usually its multiplication is taken to be function composition , while its addition is pointwise addition of the images. 15. This led over time to an abuse of notation whereby superscripts indicate iterative function composition , including derivatives. 16. The axioms of a category are in fact inspired from the properties ( and also the definition ) of function composition . 17. A "'concatenative programming language "'is a function composition as the default way to build subroutines. 18. Another important operation defined on functions is function composition , where the output from one function becomes the input to another function. 19. In software engineering, a "'pipeline "'consists of a chain of processing elements ( function composition . 20. In this context function composition is complicated to express, because the chain rule is not simply applied to second and higher derivatives.