3.3 1. The conventional algorithm for evaluating a polynomial ax" +an-1x²−¹+...+ a₁x +ão at x = c can be expressed in pseudocode by procedure polynomial(c, ao, a₁,..., an: real numbers) power : 1 y := ao for i:=1 to n power power *c y = y + aj * power return y{y = anc" + an-1c²-¹ + ... + a₁c + a₁} where the final value of y is the value of the polynomial at x = c. a) Evaluate 324 t at a – 2 by working through each step of the algorithm showing the values assigned at each assignment step. b) Exactly how many multiplications and additions are used to evaluate a polynomial of degree n at x = c? (Do not count additions used to increment the loop variable.)
3.3 1. The conventional algorithm for evaluating a polynomial ax" +an-1x²−¹+...+ a₁x +ão at x = c can be expressed in pseudocode by procedure polynomial(c, ao, a₁,..., an: real numbers) power : 1 y := ao for i:=1 to n power power *c y = y + aj * power return y{y = anc" + an-1c²-¹ + ... + a₁c + a₁} where the final value of y is the value of the polynomial at x = c. a) Evaluate 324 t at a – 2 by working through each step of the algorithm showing the values assigned at each assignment step. b) Exactly how many multiplications and additions are used to evaluate a polynomial of degree n at x = c? (Do not count additions used to increment the loop variable.)
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:3.3
1. The conventional algorithm for evaluating a polynomial anx² +an-1x¹¹+...+α₁x +ão
at x = c can be expressed in pseudocode by
procedure polynomial(c, ao, a₁, ..., añ: real numbers)
power := 1
y := ao
for i:=1 to n
power power *c
y := y + Aį * power
return y{y = anc" + An-1c²¯¹ + ··· + a₁c + ªo}
where the final value of y is the value of the polynomial at x = c.
a) Evaluate 32
2 by working through each step of the algorithm showing
the values assigned at each assignment step.
b) Exactly how many multiplications and additions are used to evaluate a polynomial of
degree n at x = c? (Do not count additions used to increment the loop variable.)
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