arccos

基本解释

• n.反余弦

同根派生

英汉例句

• This is alpha version, availiable under GPL licence.Addtion, Division, Multiplication, sqrt, Ln, Exp, sin, cos, tan, arcsin, arccos, arctan and factorial are implemented.
  这有个高精度计算的函数运算辅助单元，希望对你有帮助： Calculations with float numbers of unlimited precision.