f(x) = sin x / x
Note:
bounded and continuous
Definition
A sequence {a_n} converges to L if every epsilon keeps the tail close.
Remember:
d/dx ln(x) = 1/x
Q.
Which of the following is the derivative of ln(x)?
A xB 1/xC ln(x)D e^x
# Gradient descent
dw = compute_grad_w()
w = w - lr * dw
Key idea
Distance from center (a, b) to (x, y) is constant.
(x - a)^2 + (y - b)^2 = r^2
Course context · 课程上下文
MAT136 · Week 4 · Chain rule
lecture notesuploaded image problemmistakes from last session
Study memory · 学习记忆
Weak spot: implicit differentiation
needs one guided example before more drills
Next practice · 下一步练习
3 targeted questions ready
the next task starts from the actual gap
Make every course
feel alive, not just
stored in files.
课程资料、图片问题、学习进度、复习计划和题库练习都在同一个学习工作台里推进。 Syntara 先理解上下文,再和你一起决定下一步。