70-75分钟
一篇 17.5m
70-75分钟
一篇 17.5m
The centroid ( x ¯ , y ¯ ) {\displaystyle ({\bar {x}},\;{\bar {y}})}
y的 公式 利用中心
连续
a.e 指almost everywhere
he projection onto the x-axis
?
题号:
约60t
题号:
49t
题号
约15*8=120t
equation case,
求一次导 乘上一个 m 以此类推 故 m-> D 武忠祥讲义
difference equation
此处 f_N -> x^N
y^N -> y的N阶导数
not unique up to multiples as it was before
?
characteristic function of a standard normal distribution
...
就是 两者 均值和方差相等
所以推出了 特征多项式前三项相等
by Taylor's theorem,
is
vT^2/2n
sign
why M^-1
determinant is the product of eigenvalues
prove by decomposition spectral theorem
leading (highest degree) coefficient
第一个等号左侧 展开 $$\lambda^n$$ 系数可知
mirror reflection of segment 1 around the real axis.
利用 共轭性质 也可以推出
since x∉{y:F(y)<ω}x∉{y:F(y)<ω}x\notin \{y:F(y)<\omega\}.
or inverse function and self montonicity is same
the same units as X.
?
, x j − x i {\displaystyle x_{j}-x_{i}} is a divisor
即 两者相等时 行列式为0
set A=B22πA=B22πA = \frac{B^2}{2\pi}
total integral one
converges to β (say)
why this must exist? https://math.stackexchange.com/questions/600795/can-a-sequence-be-called-convergent-divergent-if-it-has-finite-number-of-terms
here if \(\bata\) can't be approached(like open interval), then it can't achieve its extreme
geometric definition
projection
λ
here should be t
)2[∂λy]=
why
new solutions for the repeated root case come from generalized eigenvectors.
?
∂λ(D−λ)2[y]=∂λ(0)=0∂λ(D−λ)2[y]=∂λ(0)=0\partial_\lambda (D-\lambda)^2[y]=\partial_\lambda(0)=0 a
?
to the addition of a constant,
what meaning
magnitude
见下面定义 即 每个点处的最大值(只能是投影到 circulation )
deficiency
高维也可以 只不过不是标准正交基罢了,没有几何意义
R3
because the whole space in just \(R^n\)(n=3)
tangent space
both are best linear approximation of corresponding manifold ,
so \(d\varphi\) best approximate \(\varphi\)
0-form
how 2->3 line why third line g disappear
dα ∧ β + (−1)p (α ∧ dβ)
here d can be visualized by boundary
applied the properties of the exterior derivative.
why
proves the formula
?
用条件证明条件
and ⋆ β = β 1 ⋆ ∧ ⋯ ∧ β n − k ⋆ {\displaystyle \star \beta =\beta _{1}^{\star }\wedge \cdots \wedge \beta _{n-k}^{\star }}
linear
the standard sesquilinear form
equal to a binomial coefficient:
即 基向量的个数
that x ∧ x = 0 {\textstyle x\wedge x=0} fo
similar to mod
exterior product,
此处定义 感觉是分了类 最好有数分基础
by the ideal I generated by elements of the form x ⊗ x.
可以通过几何意义 排除
{(1,0,0,0)+U,(0,0,1,0)+U}{(1,0,0,0)+U,(0,0,1,0)+U}\{ (1,0,0,0)+U, (0,0,1,0)+U \} is a basis for R4/UR4/U\mathbb{R}^4/U.
why
satisfy
bilinear
functions V × W → F {\displaystyle V\times W\to F}
think as row vector
whence x0≥a+ϵx0≥a+ϵx_0\geq a+\epsilon.
a
misled
if taken repitation in account , then "equal"
https://math.berkeley.edu/~hutching/teach/54-2017/svd-notes.pdf
a rank RRR matrix to a rank K
?
eigenvectorsSolve for eigenvectors\color{blue}{\text{Solve for eigenvectors}}
only 111 or −1−1-1
all negative
all different diagonal elements
if r < min(m,n)?
λ1
here should be \(\lambda_{2}\)
infinitesimal transformations
a⋅∇][a⋅∇
https://www.quora.com/What-is-the-second-directional-derivative
http://mathonline.wikidot.com/higher-order-directional-derivatives
notice dot product not matrix multiplication
by searching "directional derivative calculate twice"
和第二个回答基本一个意思 此处\(a\) 就是 (a,b) $$\nabla$$ 就是下面的微分算子
FFF can be expanded into
similar with one
intuitively know as,
just prove by partial derivative meaning
reproduces
how to calculate high order gradient ?
and
可以 把 \(R\) 看做多个列向量计算
此处 可以把列向量看成数字 计算~~(不过计算时不能忘记 他其实是列向量)~~
similar
if \(P^{-1}\) on the right , then output A
on left , then something like A, so similar
singular vector f
?
the second and fourth terms are the same
好像是多余的?
relative positions of the two variables,
important
Make Hand Tool select Images and Text".
must disable other option about "hand tool"
if the have same sign it mean it must be maxima of minima..
? who tell you the conclusion
alone cannot determine whether ffff has a maximum, minimum or inflection point at aaaa.
此时无法利用保号性
除非利用4阶导等
If the partial derivatives are continuous, we know that evaluating them at nearby points yields almost the same result.
important
self-propagating system
meaning?
didn’t realize that a piece of glass is a material with an index, and that his calculation had applied to my question.
?
To the real numbers, it appeared that “0 * 0 = -1″, a giant paradox.
:)
in another dimension,
?
he first nonzero derivative has an odd order implies that the sign of f'(x)
?
Cauchy's mean value theorem
use second condition
also request that differentiable on I
ξ {\displaystyle \xi } ranges over all values between x and c.
so it must be differentiable on range I
since the existence of the limit of f/g has not yet been established.
why the above f(x)/g(x) can be directly written
[e]
或者 直接几何上理解
converges if and only if the sequence
by euler it must converge ?
completes the proof
?
all j {\displaystyle j} , | α + 1 j − 1 | ≥ 1 − Re α + 1 j ≥ 1 {\textstyle \left|{\frac {\alpha +1}{j}}-1\right|\geq 1-{\frac {\operatorname {Re} \alpha +1}{j}}\geq 1}
why last >=1
(Mi
here is bound , not exactly least upper bound
s2(n)
power series
we would not have to compute formulas for all the sums of lower degree powers
?
when f is differentiable)
here is why must need condition that function is differentiable
Riemann integral instead of Lebesgue integral,
?
are too strong
?
Proof for Taylor's theorem in one real variable
和 同济教材 一样 证明 余项极限为0
Therefore, since it holds for k = 1, it must hold for every positive integer k.
leads cauchy form
leads to the same result than using the mean value theorem.
?
pplies for the Riemann integral assuming that f(k) is continuous
?
to absolute continuity of
? why use this
f(n+1)(ξ)
why ?
G(x)
just x
holds with this particular weakening of the assumptions on fff.
?
integrating some but not all of the x1,…,xnx_1,\ldots, x_nx1,…,xn variables
how to do?
Relaxing the Condition
?
Advanced
maybe more settings
If FFF is any primitive of fff on [a..b][a..b]\closedint a b,
duplicate with 1?
Mean Value Theorem
think \(b-a\) in lagrange is \(\beta (t)-\alpha (t)\)
Mean value theorems and functional equations
also prove based on rolle
Kirshna's Real Analysis: (General).
prove based on rolle
, L'Hôpital's rule which is proved by using Cauchy's MVT.
?
continuous
needed by the extreme value theorem
then the right- and left-hand derivatives exist at every inner point
?
It is also the basis for the proof of Taylor's theorem.
~~?~~ https://www.math.cuhk.edu.hk/course_builder/1516/math1010c/Taylor.pdf
for every natural number n {\displaystyle n} , there exists an x n ∈ [ a , b ] {\displaystyle x_{n}\in [a,b]} such that f ( x n ) > n {\displaystyle f(x_{n})>n} .
similar to http://www-groups.mcs.st-andrews.ac.uk/~john/analysis/Lectures/L21.html
基于 sequence 性质
This defines a sequence {dn}.
主要 利用 Bolzano–Weierstrass theorem
Therefore, 1/(M − f(x)) is continuous on [a, b].
主要 利用 continuous 性质 推导出矛盾
first principles
?
主要利用supremacy
supremacy of M {\displaystyle M} and completes the proof.
? ~~应该是 f(s)~~
~~这句话表明 存在一个 supremum > f(s) 无限递归下去,f(s)=M~~
supremacy indicate \(\forall \epsilon>0,\exist x,f(x)\le M - \epsilon\) so contradicts
increases from f ( a ) {\displaystyle f(a)} to M {\displaystyle M} as x {\displaystyle x} increases from a {\displaystyle a} to b {\displaystyle b} .
关键点
from the supremacy of s {\displaystyle s}
relation with the following sentences ?
Suppose the contrary
always use this underlied thoughts
Proof using the hyperreals
说白了 就是 强行用 无穷小 证明
for all real x
based on infinitesimal
overlaps
cover
then all points between a {\displaystyle a} and e {\displaystyle e} also belong to B {\displaystyle B} .
通过 连续 的有限性性质
不断迭代 证明 有界
bounded on [ a , p ] {\displaystyle [a,p]} .
domain
supremum
?
we know that f ( x n k ) {\displaystyle f(x_{{n}_{k}})} converges
heine theorem
standard part function,
把无限小扔掉 可以理解为线性主部
This put to rest the fear that any proof involving infinitesimals might be unsound,
?
exists a number x ∈ A {\displaystyle x\in A} , such that x > s {\displaystyle x>s}
?
properties of the supremum
po also use continuity
there exists some
?
projection
projection indicate orthonormalizing
rank-one linear maps
?
divide by zero to invert it.
?
...
can just be extention or P
Fubini's theorem):
?
choosing
relevant with t
by parts
calculate integral of (x-t)^k
define
this has remainder error, so?
converge to f (α)
if not closed interval , the f(\(\alpha\)) value can be infinite
if closed interval , f(\(\alpha\)) must not equals infinite based on this
f attains its bounds
this need the closed interval condition
Every sequence has a monotonic subsequence.
this doesn't require boundness
can be chosen smaller so that g is nonzero on I {\displaystyle {\mathcal {I}}} .[d]
important
It is also the case that
use fourth condition
on this interval and g is continuous,
since calculate the f'/g' function
so must comply with this
third condition
become zero,
use the first hypothesis
apply Fermat's stationary point theorem directly.)
similar to above proof
一般化了 不需要endpoint 都等于0 直接得出 闭区间 必有derivative equals zero的点
This is a canonical isomorphism between VVV and V∗∗V∗∗V^{**}.
?
parallel to P1P2
?
,
?
Hyperbolic cosine
?
solve for the base bbb
b is inverse function of ln...
The map from t to (x, y) is differentiable, in fact of class C∞, with derivative 0 at the cusps.
perhaps to you when you return to it
真实 的确是的
当时写 过几天就忘了....
we reload the page now
tmp file
chrome tool not render like below
<?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet ... <feed xmlns="http://www.w3.org/2005/Atom" xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/" xmlns:blogger="http://schemas.google.com/blogger/2008" xmlns:georss="http://www.georss.org/georss" xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr="http://purl.org/syndication/thread/1.0" xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0"> ...
where
loop
while loop
S, A, C, F, and E are as follows:
S 写错了 see referenced paper in https://www.mathworks.com/matlabcentral/fileexchange/51035-da-dragonfly-algorithm
However, this condition is not essential for the method to work.
po 不推荐 上面恒定为1 的情况
With T = 0 {\displaystyle T=0}
即 趋近于 的极端
when e n e w {\displaystyle e_{\mathrm {new} }} is greater than e {\displaystyle e} .
即 允许 往上走
而不是一直往下走,最后达到局部最优
carrot
?
forward projection
?
costmap_2d
?
observe();
out of gw scope
so gw is expired
change in D will be: Δ D = f ( x 0 + 2 , y 0 + 3 2 ) − f ( x 0 + 1 , y 0 + 1 2 ) = A + B = Δ y − Δ x {\displaystyle {\begin{array}{lclcl}\Delta D&=&f(x_{0}+2,y_{0}+{\tfrac {3}{2}})-f(x_{0}+1,y_{0}+{\tfrac {1}{2}})&=&A+B&=&\Delta y-\Delta x\end{array}}}
Pseudo-code algorithm
= D - 2*dx
这里应该是 +2*dy
根据上面的推导
he complexity of the state space t
待看
etermine the number k of bins
由 14 知 必须要知道 k
hich yields
都是由 自己假设的值 决定
̂p = n−1X.
proof
the triangle property.
?
2a
这个是 基于地图的
所以 可以在 门那里作高的 weight
如果是 没有地图的 就不行
此时就要 slam
index j
只在 相对大的 weight 作sampling
apart from uni-modal posteriors).
?
for every xxx,
右侧 导数为1
the gradient of LLL and the gradient of CCC are colinear,
po 即 同时取最大值
ultinomial distribution i
n! 表示 总的排列情况
x1! 表示其中x1交换后重复的排列
where ⟨ e i , a i ⟩ = ‖ u i ‖ {\displaystyle \left\langle \mathbf {e} _{i},\mathbf {a} _{i}\right\rangle =\left\|\mathbf {u} _{i}\right\|}
由上面投影的过程 可以推出
computed orthonormal basis
通过几何方法
就是 迭代投影的过程
eigendecomposition
其实就是 Diagonalization of Matrices ```python from sympy import * Y = MatrixSymbol('Y', 3, 3)
Matrix(X)diag(x1,x2,x3)nMatrix(Y) ```
# left eigenvectors are the inverse of the right eigenvectors
http://www.foo.be/docs-free/Numerical_Recipe_In_C/c11-0.pdf
证明
未完全看懂
The solution (in case you live in Egypt):
valid
needed
此处省略 needed flush(可以通过in order to 推断 )
then
这个不需要 前面的 if吧
determinant of amatrix equals the determinant of its transpose
由 determnant 的计算公式
可以显然得出
= A†·A
和上面一样
主要是因为 transpose 的原因 ,所以可以交换顺序
×.5 ×.9 ×.5 ×.9 ×.5
第一个是第一次 state 为A的概率
第二,4,6都是是观测概率
35 都是转移概率
so
此处由于 可能会多次 visit 一个node
所以不用 P(visited)
用 E(num) 其实是一个意思
which is
这里 E1 应该就是 E 的意思 tower property
(1−Kn)pn,n−1
为何不加\( r_{n}\)
zn−x^n,n−1
因为一般不好观测到 速度
find . -name .git -execdir bash -c 'echo -en "\033[1;31m"repo: "\033[1;34m"; basename "`git rev-parse --show-toplevel`"; git status -s' \;
可以使用下面的代码 显示路径
find . -name .git -execdir bash -c 'echo -en "\033[1;31m"repo: ""; echo -en "\033[1;35m $(pwd)" ; echo -en "\n\033[1;37m$(basename " $(git rev-parse --show-toplevel)")\n"; git status -s ' \;
the window size ≥ MSS
这个 一般都成立
has no other poles, and so no other residues.
?
thus it is analytic at zP
分母上 没有 \(z-z_{p}\)