How do you sum a number in a for loop?

“how to sum in a for loop python” Code Answer

1. n = input(“Enter Number to calculate sum”)
2. n = int (n)
3. sum = 0.
4. for num in range(0, n+1, 1):
5. sum = sum+num.
6. print(“SUM of first “, n, “numbers is: “, sum )

How do you find the sum of a number in a while loop in Python?

See this example:

1. num = int(input(“Enter a number: “))
2. if num < 0:
3. print(“Enter a positive number”)
4. else:
5. sum = 0.
6. # use while loop to iterate un till zero.
7. while(num > 0):
8. sum += num.

Which loop can be used when the number of times the statements in loop has to be executed is not known in advance?

The while loop is used to repeat a section of code an unknown number of times until a specific condition is met. For example, say we want to know how many times a given number can be divided by 2 before it is less than or equal to 1.

What is do while loop in C with example?

There is given the simple program of c language do while loop where we are printing the table of 1.

• #include
• int main(){
• int i=1;
• do{
• printf(“\%d \n”,i);
• i++;
• }while(i<=10);
• return 0;

How do you sum a while loop?

First, we have taken a number input from the user and stored it in a variable num. Initially, the sum is initialized to 0. Then, we have used the while loop to iterate until num gets zero. In every iteration of the loop, we have added the num to sum, and the value of num is decreased by 1.

How do you sum in C programming?

Program : C Program to find sum of two numbers

1. #include
2. int main() {
3. int a, b, sum;
4. printf(“\nEnter two no: “);
5. scanf(“\%d \%d”, &a, &b);
6. sum = a + b;
7. printf(“Sum : \%d”, sum);
8. return(0);

Can you sum numbers in a while loop?

While loop to calculate sum and average Decide the value of n . Run a while loop till n is greater than zero. In each iteration, add the current value of n to the sum variable and decrement n by 1.

Can a for loop be used inside a while loop?

You can put a for loop inside a while, or a while inside a for, or a for inside a for, or a while inside a while. Or you can put a loop inside a loop inside a loop. You can go as far as you want. Let’s look at some nested while loops to print the same pattern.

What is do while loop in C?

The C do while statement creates a structured loop that executes as long as a specified condition is true at the end of each pass through the loop. The syntax for a do while statement is: If the value of the expression is “false” (i.e., compares equal to zero) the loop is exited.

How do you use a loop?

A “For” Loop is used to repeat a specific block of code a known number of times. For example, if we want to check the grade of every student in the class, we loop from 1 to that number. When the number of times is not known before hand, we use a “While” loop.

Do While loop in C programs?

do { statement(s); } while( condition ); Notice that the conditional expression appears at the end of the loop, so the statement(s) in the loop executes once before the condition is tested. If the condition is true, the flow of control jumps back up to do, and the statement(s) in the loop executes again.

Do while loops sum numbers?

Using do-while Loop

• #include
• #include
• void main()
• {
• int num, i, sum = 0; // initialize and declare the local variables.
• printf(“Enter a positive number: “);
• scanf(“\%d”, #); // take a value up to which find the sum of natural number.
• i = 0;