21 lines
422 B
R
21 lines
422 B
R
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Find sum of natural numbers without formula
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# take input from the user
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num = as.integer(readline(prompt = "Enter a number: "))
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if(num < 0) {
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print("Enter a positive number")
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} else {
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sum = 0
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# use while loop to iterate until zero
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while(num > 0) {
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sum = sum + num
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num = num - 1
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}
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print(paste("The sum is", sum))
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}
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Output
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Enter a number: 10
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[1] "The sum is 55"
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