Daniel-Nikpayuk_SICP-Solutions/Chapter 3/3.5/exercise-3.54/exercise.lsp
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;; Copyright 2015 Daniel Nikpayuk
;;
;; This file is part of SICP Solutions.
;;
;; SICP Solutions is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
;; as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
;;
;; SICP Solutions is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
;; of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License along with SICP Solutions. If not, see
;; <http://www.gnu.org/licenses/>.
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(define (mul-streams s1 s2)
 (stream-map * s1 s2)
)

(define ones (cons-stream 1 ones))
(define integers (cons-stream 1 (add-streams ones integers)))

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;; Are we starting with 0! or 1! ?
;; I will assume 1 because that's what the integers started with.

(define factorials (cons-stream 1 (mul-streams (stream-cdr integers) factorials)))

