# 1.1 Exercises  (Page 2/8)

 Page 2 / 8

Amount = P*(1 + R)^N

where R is the interest rate as a decimal number (e.g., 6.5% is 0.065). Write and run a program that performs the following steps:

• Reading the values of P and R from the keyboard.
• Calculating the amount of money that will be available in 5 years.
• Displaying the result.

6. Write and run a program that reads the name, age, sex, height and weight of a student and displays with proper heading for each variable.

7. Write a program to accept a single character from the keyboard. Using cout statement to display the character or keystroke and its decimal, hexadecimal and octal values. Display in the following format:

## Exercise 4

1. Write and run a program that reads a character and writes out a name corresponding to the character:

`if the character is ‘F’ or ‘f’ then the name is ‘Frank’`

`if the character is ‘C’ or ‘c’ then the name is ‘Christine’`

`if the character is ‘A’ or ‘a’ then the name is ‘Amanda’`

`if the character is ‘B’ or ‘b’ then the name is ‘Bernard’`

`otherwise, the name is just the character.`

2. Write and run a program that reads an angle (expressed in degrees) and states in which quadrant the given angle lies. An angle A is said to be in the

• first quadrant if it is in the range 0<= A<90
• second quadrant if it is in the range 90<= A<180
• third quadrant if it is in the range 180<= A<270
• and fourth quadrant if it is in the range 270<= A<360.

3. Write and run a program that reads a month from the user and displays the number of days in that month.

4. Write and run a program that reads a numeric grade from a student and displays a corresponding character grade for that numeric grade. The program prints ‘A’ for exam grades greater than or equal to 90, ‘B’ for grades in the range 80 to 89, ‘C’ for grades in the range 70 to 79, ‘D’ for grades in the range 60 to 69 and ‘F’ for all other grades.

5. Write and run a program that reads a marriage code (one character) and writes out a message corresponding to the character:

`if the character is ‘M’ or ‘m’ then the message is “Individual is married”`

`if the character is ‘D’ or ‘d’ then the message is “Individual is divorced”`

`if the character is ‘W’ or ‘w’ then the message is “Individual is widowed”`

`otherwise, the message is “An invalid code was entered”.`

(Hint: use switch statement).

6. Chapter 4 contains the example program which can solve quadratic equations. Modify that program so that when the discriminant del is negative, the imaginary roots are calculated and displayed. For this case, the two roots of the equation are:

x1 = (-b)/(2a) + sqrt(-del)/(2a)i

x2 = (-b)/(2a) + sqrt(-del)/(2a)i

where i is the imaginary number symbol for the square root of –1. (Hint: Calculate the real and imaginary parts of each root separately).

7. Write and run a program that gives the user only three choices: convert from Fahrenheit to Celsius, convert from Celsius to Fahrenheit, or quit. If the third choice is selected, the program stops. If one of the first two choices is selected, the program should prompt the user for either a Fahrenheit or Celsius temperature, as appropriate, and then compute and display a corresponding temperature. Use the conversion formulas:

Is there any normative that regulates the use of silver nanoparticles?
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
what does nano mean?
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
for screen printed electrodes ?
SUYASH
What is lattice structure?
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
how did you get the value of 2000N.What calculations are needed to arrive at it
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