推荐理由：《Expression Finder》是一款适用于安卓系统的系统类软件APP。The application Expression Finder is designed to find the mathematical expressions that have concrete value for specific parameters, as well as for analysis of the mathematical sequences.Note: internet connection is required to run algorithms.Examples of use. ① - From Test IQ. Find the next number in the sequence ①, ②, ①⓪, ③⑦, ①⓪①. The field Target must contain the last number in sequence. The field Operands must contain previous numbers in sequence. Target = ①⓪① Operands = ①, ②, ①⓪, ③⑦ Max. Num. Of Operands = ⑤ Algorithm = Analysis of Sequence Results: a[i] = (i-①)*(i-①)*(i-①) a[i-①] . . i = ①, ②, ③, ④, ⑤, ⑥ a[①] = ①, a[②] = ②, a[③] = ①⓪, a[④] = ③⑦, a[⑤] = ①⓪①② - From math puzzle ⓪ ⓪ ⓪ = ⑥. Find an expression consisting of ③ operands equals ⓪, and having a value of ⑥. Target = ⑥ Operands = ⓪ или Operands = ⓪ ⓪ ⓪ Max. Num. Of Operands = ③ Functions: check Sqrt and Factorial Algorithm = Expression Finder Results: factorial(factorial(⓪)《Expression Finder》大小2.01MB，在本站深受6977位玩家喜爱和下载。要找等，赶紧下载到手机吧。
factorial(⓪)
factorial(⓪)) = ⑥③. Find the next number in the sequence ⑤ ⑥ ①① ①⑦ ②⑧ ④⑤. The field Target must contain the last number in sequence. The field Operands must contain previous numbers in sequence. Target = ④⑤ Operands = ⑤ ⑥ ①① ①⑦ ②⑧ Max. Num. Of Operands = ③ Algorithm = Analysis of Sequence Results: a[i] = a[i-①] a[i-②] . . i = ①, ②, ③, ④, ⑤, ⑥ a[①] = ⑤, a[②] = ⑥, a[③] = ①①, a[④] = ①⑦, a[⑤] = ②⑧, a[⑥] = ④⑤ This version supports two functions, Sqrt and Factorial. The program does not guarantee finding the best solutions. For best results, run the algorithm ② or ③ times.
