Lesson 1 Flashcards

1
Q

provide approximations to the
problems in question.

A

Numerical methods

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2
Q

involves the study of methods of computing numerical data

A

Numerical analysis

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3
Q

ISSUES IN USING NUMERICAL METHODS

A

 Rate of convergence
 Accuracy
 Completeness of the response

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4
Q

techniques used in the formulation of mathematical problems so they can be solved with arithmetic operations.

A

Numerical methods

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5
Q

one mutual characteristics

A

They always contains large numbers of tedious arithmetic computations.

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6
Q

three different ways in which engineers approached the problem solving

A
  1. Analytical or exact methods are used to derive solutions to mathematical problems.
  2. Behavior of some systems were characterized by graphical solutions.
  3. Devices such as calculators and slide rules can be used in the manual implementation of numerical methods.
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7
Q

undoubtedly one of the most powerful tools available today. They are capable of managing large systems of equations, non-linearities, and complicated geometries which are unusual in engineering practice and are often impossible to be solved analytically.

A

Numerical methods

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8
Q

efficient vehicle for learning to
use computers.

A

Numerical methods

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9
Q

deliver a way for you to strengthen your understanding of mathematics.

A

Numerical methods

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10
Q

formulation or equation that expresses the essential
features of a physical system or process in mathematical
terms. It can be represented as a functional relationship of
the form.

A

MATHEMATHICAL MODEL

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11
Q

characteristic that shows the behavior or state of the system

A

Dependent variable

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12
Q

indicates the dimensions, such as time and space, along with the system’s behavior is being determined

A

Independent variable

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13
Q

reflective of the system’s properties or composition

A

Parameters

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14
Q

external influences acting upon the system.

A

Forcing Functions

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15
Q

satisfies the original differential equation, however, there are many mathematical models that cannot be solved exactly.

A

Analytical or Exact Solution

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16
Q

formally designate the reliability of a numerical value.

A

significant figure or digits

17
Q

digits that are ALWAYS significant

A

Non-zero

18
Q

are never significant

A

leading zeroes

19
Q

are significant only after a decimal point

A

final or trailing zeroes

20
Q

how closely a computed or measured value agrees with the true value.

A

ACCURACY

21
Q

how closely individual computed or measured values agree with each other.

A

PRECISION

22
Q

the use of approximations to represent exact mathematical operations and quantities.

A

Numerical errors

23
Q

2 major forms of numerical errors

A
  1. round off error
  2. truncation error
24
Q

equal to the discrepancy between the truth and the approximation

A

Numerical error

25
Q
A