The publication describes two ways of shopping, taking into account the CPI (Consumer Price Index) inflation rate. In the first case, changes in the sales price are made in a continuous manner in accordance with the inflation rate, and therefore it is better to make larger purchases. In the second case, it is better to carry out smaller purchases, because it is characterized by one-time adjustment of sales prices to the entire purchased a lot of goods. Both cases were verified based on the Solver tool, using non-linear, integer-based optimization. The final result was to determine the optimal purchase quantities with the minimum inventory costs.
A study on new right/left inverses of nonsquare polynomial matrices
This paper presents several new results on the inversion of full normal rank nonsquare polynomial matrices. New analytical right/left inverses of polynomial matrices are introduced, including the so-called τ-inverses, σ-inverses and, in particular, S-inverses, the latter providing the most general tool for the design of various polynomial matrix inverses. The applicationoriented problem of selecting stable inverses is also solved. Applications in inverse-model control, in particular robust minimum variance control, are exploited, and possible applications in signal transmission/recovery in various types of MIMO channels are indicated.
Solving: A Guide to Creating High Quality 8D Reports Breckenridge, United States Phred Solutions Rantanen, K., & Domb, E. (2008). Simplified TRIZ - new problem solvingapplications for engineers and manufacturing professionals . New York, United States: Auerbach Publications. Rantanen K. & Domb E. 2008 Simplified TRIZ - new problem solvingapplications for engineers and manufacturing professionals New York, United States Auerbach Publications Rebecca, S. (2018). Introduction to 8D Problem Solving: Including Practical Applications and Examples. The Quality Management