# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/fgpyiiq
如何“破译”清朝的微积分课本?**
前两天看到了网上流传的清朝的微积分课本中的几页,其中的所有数学表达式都是用中文书写的。虽然整个过程不忍直视,但还是感觉蛮有趣的。于是我打算写篇文章翻译一下这几页。[1][2]

下面我们先来看到第一页:

第一页

请您上眼。乍一看大家肯定觉�� ... ⌘ Read more