Schaum's outline of theory and problems of calculus of finite differences and difference equations
Spiegal, Murrary R
Schaum's outline of theory and problems of calculus of finite differences and difference equations - - New York McGraw-Hill 1971 - vi,259p.
Differential equations Functional equations
519.91
Schaum's outline of theory and problems of calculus of finite differences and difference equations - - New York McGraw-Hill 1971 - vi,259p.
Differential equations Functional equations
519.91