Texas Instruments TINSPIRE Reference Guide - Page 130
prodSeq, sumSeq, Expr1, expression, High+1, Concrete, Mathematics: A Foundation for Computer Science
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Π() (prodSeq) Π(Expr1, Var, Low, High) ⇒ expression Note: You can insert this function from the keyboard by typing prodSeq(...). Evaluates Expr1 for each value of Var from Low to High, and returns the product of the results. Note: See also Product template (Π), page 4. Π(Expr1, Var, Low, LowN1) ⇒ 1 Π(Expr1, Var, Low, High) ⇒ 1/Π(Expr1, Var, High+1, LowN1) if High < LowN1 The product formulas used are derived from the following reference: Ronald L. Graham, Donald E. Knuth, and Oren Patashnik. Concrete Mathematics: A Foundation for Computer Science. Reading, Massachusetts: Addison-Wesley, 1994. G() (sumSeq) G(Expr1, Var, Low, High) ⇒ expression Note: You can insert this function from the keyboard by typing sumSeq(...). Evaluates Expr1 for each value of Var from Low to High, and returns the sum of the results. Note: See also Sum template, page 4. G(Expr1, Var, Low, LowN1) ⇒ 0 G(Expr1, Var, Low, High) ⇒ MG(Expr1, Var, High+1, LowN1) if High < LowN1 The summation formulas used are derived from the following reference: Ronald L. Graham, Donald E. Knuth, and Oren Patashnik. Concrete Mathematics: A Foundation for Computer Science. Reading, Massachusetts: Addison-Wesley, 1994. Catalog > Catalog > 124 TI-Nspire™ Reference Guide