import math


calc = lambda a, x: a * math.sin(x) / x


def calculate_all(a):
    results = []
    x = 0.5
    while x <= 50:
        y = calc(a, x)
        results.append(y)
        x += 0.5
    return results


def save_results(results):
    with open("results.txt", "w") as f:
        for y in results:
            f.write(f"{y}\n")
    print("Результаты сохранены в results.txt")