撰写数学专业留学文书时，你可以参考以下要点：
提及任何相关的实习或工作经验，以及你从中学到的技能。
描述你参与或组织的活动，以及你担任的职务。
突出你的领导能力、组织能力、交流沟通能力或协调能力。
阐述你的学习计划和目标，以及你希望通过留学达到的目标。
列出你所获得的奖项或荣誉，以及是否有论文发表。
推荐人与你认识的时间长度。
推荐人对你学术能力的评价和描述。
```
[Professor Zhang Hua's Name]
[Professor Zhang Hua's Title]
[School of Management]
[University Name]
[Address]
[City, State, ZIP Code]
[Country]
[Phone Number]
[Email]
[Date]
[Recipient's Name]
[Recipient's Title]
[Recipient's Institution]
[Address]
[City, State, ZIP Code]
[Country]
Dear [Recipient's Name],
I am writing this letter of recommendation for [Your Name], who was my student in the Department of Mathematics at [University Name] from [Start Date] to [End Date]. As [Your Title] in the [Your Department], I had the privilege of teaching and mentoring [Your Name] during his/her academic journey.
[Your Name] demonstrated a profound interest in mathematics from an early age, often engaging in discussions on complex problems and seeking innovative solutions. His/her dedication to the subject was evident in his/her consistent high grades and participation in advanced mathematical research projects.
Beyond academics, [Your Name] was an active participant in various extracurricular activities, including [mention any relevant activities or clubs]. He/she was also a leader in our department's study group, where he/she consistently motivated and guided his/her peers.
It is without hesitation that I recommend [Your Name] for a position in your institution's mathematics program. His/her passion for the subject, coupled with his/her analytical and problem-solving skills, will undoubtedly make him/her an asset to your academic community.
Please do not hesitate to contact me if you require any further information.
Sincerely,
[Professor Zhang Hua's Signature]
[Professor Zhang Hua's Name]
```
请根据你的具体情况调整上述内容，并确保文书内容真实、全面且简明扼要。
