A(n ______ allows a user to specify a task without specifying how the task will be accomplished

Write the definition of a function that takes as input the three numbers. The function returns true if the first number to the p

sattari [20]

Answer:

I am writing a C++ program.

Here is the function CheckPower() which is a bool return type function which means it will return either true of false. This function has three double type parameters. This function returns true if the first number to the power of the second number equals the third number; otherwise, it returns false.

bool CheckPower(double number1, double number2, double number3)

{

double power; // stores value of number1 to the power number2

power = pow(number1,number2); // pow() function to computer power

if (power==number3) // if the value of power is equal to third no number3

return true; // returns true

else // if above condition evaluate to false then returns false

return false;

}

Explanation:

Lets take the values of number1 = 3, number2 = 2 and number3 = 9 to understand the above function.

The pow() function is a power function to calculate the result of number1 raised to the power of number2. Here number1 is the base number and number2 is exponent number. As number1 = 3 and number2 = 2 so this is equivalent to 3² . So 3 raise to the power 2 is 9. The value stored in power is 9.

power = 9

Next, the if condition checks if the value in power is equal to the value of number3. The value of number3 is 9 and the value in power variable is also 9 so the If condition evaluates to true. So the if part is executed which returns true.

If the value of number3 is, lets say, 10 then the If condition evaluates false as the value of power is not equal to value of number3. So the else part is executed which returns false.

If you want to see the output of this function you can write a main() function as following:

int main()

{ double num1, num2, num3;

cout << "enter first number: ";

cin >> num1;

cout << "enter second number: ";

cin >> num2;

cout << "enter third number: ";

cin >> num3;

if(CheckPower(num1, num2, num3))

{ cout<<"True"; }

else

{ cout<<"False"; } }

This is a main() function which asks the user to enter the values of three numbers num1, num2 and num3. The if condition calls CheckPower() function to check if the first number to the power of the second number equals the third number. If this condition evaluates to true, the message True is displayed on the screen otherwise message False is displayed on output screen.

The screen shot of program along with its output is attached.

3 0

3 years ago

What does CS mean? idk

Rainbow [258]

Computer science or computer software

3 0

3 years ago

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Write a function called count_occurrences that takes two strings. The second string should only be one character long. The funct

iVinArrow [24]

Answer:

Here is the Python function:

def count_occurrences (string1 , string2): # method that takes two strings as parameter and returns how many times second string occurs in first

count = 0 #counts number of occurrence of string2 in string1

for word in string1: #iterates through each word of the string1

for character in word: #iterates through each character of each word in string1

if character == string2: # checks if the character in string1 is equal to the character of string2

count = count + 1 #adds 1 to the count of string2 in string1

return count #returns number of times the string2 occurs in string1

#in order to check the working of the function add the following lines to the code:

first_str = input("Enter the first string: ") #prompts user to enter first string

second_str = input("Enter the second string (one character long): ") #prompts user to enter second string which should be one character long

occurrence = count_occurrences(first_str,second_str) #calls count_occurrences method by passing both strings to it

print(second_str,"occurs",occurrence,"times in",first_str) #prints how many times the second_str occurs in the first_str on output screen

Explanation:

The program is well explained in the comments added to each statement of the above code. I will explain the program with an example:

Suppose

string1 = "hello world"

string2 = 'l'

So the method count_occurrences() should return how many times l occurs in hello world.

count is used to count the number of occurrences of l in hello world. It is initialized to 0.

The first loop iterates through each word of string1. The first word of string1 is "hello"

The second loop iterates through each character/letter of each word. So the first letter of "hello" word is 'h'.

The if condition if character == string2: checks if the character is equal to string2 i.e. l.

character = "h"

string2 = "l"

The are not equal so the program moves to the next character of word hello which is e. The if condition again evaluates to false because e is not equal to l. So the program moves to the next character of word hello which is l.

This time the if condition evaluates to true because

character = "l"

string2 = "l"

character == string2

l == l

So the if part is executed which has the following statement:

count = count + 1

So the count is added to 1. count was 0 previously. Now

count = 1

Next the program moves to the next character of word hello which is l. This time the if condition evaluates to true because the character l matches with string2. So count is again incremented to 1. count = 2.

Next the program moves to the next character of word hello which is o. The if condition evaluates to false as o does not match with string2 i.e. l. So the count remains 2.

Next the first loop moves to the next word of the string1 = "world". The inner (second) for loop iterates through each character of "world" from "w" to "d" and checks if any character is equal to string2. Only one character is equal to string2 in "world". So count is incremented to 1. Hence count = 3

After the loop ends the statement return count returns the number of times string2 occurs in the string1. So the output is:

l occurs 3 times in hello world

8 0

3 years ago

Being able to express your thoughts in an email is a primary technology skill. true or false.

Zina [86]

almost everywhere else I've found this question the answer was false so i hope that helps.

5 0

3 years ago

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Why are new versions of applications packages released often

stellarik [79]

Answer:

The answer is "new version of application provides more easy to use".

Explanation:

In computer science, an application is a program, that is installed on the computer. There are many types of application software, that are "gaming software, working software, programming software, etc." At the end of time users want some new things in software to know users need programmer developed new versions of the software.
The update usually improves the device or service in its current version, whilst an improvement is an entirely new version. Installation is usually free and easy. You also have to wait for updates that are difficult to install.

5 0

3 years ago