Final answer:
A for loop for summing odd numbers up to a given usernum can be implemented in Python by iterating through a range and adding numbers to summedvalue if they are odd.
Step-by-step explanation:
To write a for loop that assigns summedvalue with the sum of all odd values from 1 to usernum, you will want to iterate through the numbers, check if a number is odd, and if so, add it to the summedvalue. Below is a simple example in Python that demonstrates this:
summedvalue = 0
for num in range(1, usernum + 1):
if num % 2 != 0:
summedvalue += num
This loop starts at 1 and goes up to and including usernum. It checks if the number is odd by using the num % 2 != 0 condition. If the number is indeed odd, it's added to the total summedvalue.