A key to the Western calculator, containing the solution of all the examples and questions for exercise . To which is added, some useful rules, designed chiefly to facilitate the labour of teachers; and assist such as have not the opportunity of a... 12+

📗 Книга "A key to the Western calculator, containing the solution of all the examples and questions for exercise . To which is added, some useful rules, designed chiefly to facilitate the labour of teachers; and assist such as have not the opportunity of a tutor".Эта книга — репринт оригинального издания (издательство "Pittsburgh, Printed and published by Johnston & Stockton", 1831 год), созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.