数学是研究数量关系和空间形式的科学,而在数与形之间,又存在众多的和谐之美,体现位置关系与数量关系的辩证统一.本文举例说明“形内外”与“正负性”的辩证和谐. Mathematics is a science that studies quantity relations and space forms, and there are many harmony beauty between numbers and shapes, which reflects the dialectical unification of the relationship between location and quantity. Sex "dialectical harmony.