AERO 220 Introduction to Aerospace Engineering Computation

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AERO 220 Introduction to Aerospace Engineering
Computation
Meetings Time Tuesdays and Thursdays,1110 AM
1225 PM Place SSC 102 B http//imechanica.org/n
ode/6727 9/17/09
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Review

• Variables
• Rules for naming C variables
• Cs built-in integer types (unsigned long,
  long, unsigned short, short, unsigned int, int,
  unsigned char, char and bool)
• The climits file
• Numeric constants
• const qualifiers

3
Review

• Cs built-in integer type char and bool
• Cs built-in floating point types (float,
  double and long double)
• The cfloat file
• Numeric constants of floating-point type
• Arithmetic operators and type conversion
• if-else construct

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Case conversion

• int main()
• char inputchar, outputchar
• ..
• cin gtgt inputchar
• ..
• if (inputchar gt 64 inputchar lt 91)
• // the inputchar is uppercase. Change it to
  lowercase
• else
• // the inputchar is lowercase. Change it to
  uppercase
• return 0

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The ASCII Character set
American Standard Code for Information
Interchange (ASCII) See appendix c of the test
book
http//www.rtis.com/nat/user/toolbox/oldmacs/MacEu
doraManual/man151172.GIF
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Flow chart
http//www.tenouk.com/Module6_files/programcontrol
001.png
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The for loop

• Declare an integer variable, j and set an initial
  value to -4, j -4.
• Check the condition for j, j lt 0 true or false?
• Print the js value.
• Increment j by 1.
• Repeat the iteration process until j lt 0 is
  false.
• If the condition jlt0 is false, stop exit the
  loop and continue the execution of the next code
  if any.

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The for loop

• for(initial value condition iteration)
•    //   C/C statement(s)

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• void main()
•       int j
•      
•       for(j-4 j lt 0 jj1 )
•      
•             coutltltjltltendl
•      

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The break statement

• void main()
•       int j
•      
•       for(j-4 j lt 0 jj1 )
•      
•             coutltltjltltendl
• if (condition)
• break
•      

If condition is true then go out of the loop
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Start
Define integer variables i, minInteger,
maxInteger and thegauss Define a character
variable reply
Input variables minInteger and maxInteger
Guessing an integer within a given range
Initialize i 1
False
i lt 100 ?
True
Display variables minInteger and maxInteger
theguess (minmax)/2
Display theguess Ask the user if the guess is
small (s), big (b) or correct (r) Input reply
C
B
A
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A
C
B
Display you are correct and break from the loop
reply r ?
True
False
reply s ?
True
minInteger theguess
i i 1
False
reply b ?
True
maxInteger theguess
False
End
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• Calculation of Square Root via Bisection
• Estimation of Pi by Throwing Darts
• (read the handout)