高精度算法，属于处理大数字的数学计算方法。在一般的科学计算中,会经常算到小数点后几百位或者更多，当然也可能是几千亿几百亿的大数字。一般这类数字我们统称为高精度数，高精度算法是用计算机对于超大数据的一种模拟加,减,乘,除,乘方,阶乘,开方等运算。对于非常庞大的数字无法在计算机中正常存储，于是，将这个数字拆开，拆成一位一位的，或者是四位四位的存储到一个数组中， 用一个数组去表示一个数字，这样这个数字就被称谓是高精度数。高精度算法就是能处理高精度数各种运算的算法。

-High-precision algorithm, are dealing with a large number of mathematical calculations. Scientific computing in general, will always count to hundreds of decimal places or more, of course, may be hundreds of billions of tens of billions of large numbers. General accuracy of these statistics, we referred to as the number of high-precision algorithm is a computer simulation for large data add, subtract, multiply, divide, power, factorial, square root and other operations. For very large numbers can not be properly stored in the computer, so this figure apart, split into a number one, four or four to a storage array, use an array to represent a number, so this was the title is a high-precision digital number. Algorithm is able to handle high-precision accuracy the number of computing algorithms.