dsalgo 0.3.10

A package for Datastructures and Algorithms.
Documentation 
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use crate::sum_arithmetic_progression::sum_arithmetic_progression;

pub fn arithmetic_series(
    diff: i64,
    a_0: i64,
    nth: u64,
) -> i64 {
    sum_arithmetic_progression(a_0, a_0 + diff * nth as i64, nth + 1)
}

#[cfg(test)]

mod tests {

    #[test]

    fn test() {
        use super::*;

        assert_eq!(arithmetic_series(1, 1, 9), 55);
        // 9th term is 1 + 1 * 9 = 10
    }
}