handwritten numerical的用法和样例：
例句
- Finally an improved algorithm aiming at a practice problems of handwritten numerals is given.
并且针对手写数字识别的一种实际问题，给出改进的细化算法。 - Finally, experimental results on handwritten numeral characters show that the proposed method is effective and feasible.
最后，用手写数字字符识别实验来验证提出的算法是可行和有效的。
