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1st Midterm Exam
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1. What will be printed by the following program? (30pts)
program Test 3_1_9Test
character(len=16)::a,b,c,d
a="A kindly giant"
b="A small man"
c=b(:8)//"step"
d="for a"//b(8:)"
b=""//d(:4)//b(9:11)//a(3:6)
a=a(:2)//a(10:15)//"leap"
print*,c(:13),d
print*,trim(a(:12)),b
end program Test3_2_4Test
2. Calculate the Coulomb potential at a distance r from a particle with a charge of z. The required formula is:
where e=1.6x10-19C, ε=8.88x10-12 F/m, and π=3.1416. r is specified in meters and z is an integer number.(40pts)
3. Write a subroutine program that converts currencies either dollar to euro and euro to dollar or both. (1Dollar=0.807Euro, 1Euro=1.239Dollar) (40pts)
Solutions:
1. The output will be the famous quotation by Neil Armstrong while landing on the moon.
A small step for a man
A giant leap for mankind
2. Sourcecode of the program (coulomb.txt)
Compiled exe version (coulomb.exe)
3. Sourcecode of the main program (dollar_euro.txt)
Sourcecode of the module (dollar_euro_mod.txt)
Compiled exe version (dollar_euro.exe)
Note: Except for question #1, there may be infinite correct answers. |
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