# Shared Flashcard Set

## Details

Numerical methods
exam 1
7
Engineering
10/08/2012

Term
 Numerical Analisis
Definition
 Numerical analysis is the mathematical theory that leads to algorithm for solving mathematical models approximately on a computer.
Term
 numerical methods
Definition
 are used to determine an approximation to the actual solution with in some tolerable degree of error. it is a iterative numerical method that can only be used with certain type or forms of a mathematical equation, and under normal circumstances converges to final value with pre determined level of accuracy
Term
 numerical error
Definition
 it can be classified in 2 categories. ROUND OFF AND TRUNCATION ERROR
Term
 ROUND OFF ERROR
Definition
 it is a quantity R which must be added to the finite representation of the number in order to be a true representation of the number.
Term
 CAUSES OF RAND OF ERROR
Definition
 any computing device used preform calculations follow specific method to store number in a memory in order to ooperate upon them
Term
 Significant figures
Definition
 are those digits that carry meaning contributing to its precision.
Term
 Precision
Definition
 Numeric precision is defined as the exactness with which the value of a numerical estimate is known. For example, if the true value of sqr 4 is 2 and the computed solution is 2.0001, then the computed value is precise to within the first four figures or four significant digits.
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