时间:2019-02-05 作者:英语课 分类:麻省理工学院公开课:微分方程


英语课

  分集介绍:记得幂级数吧,如1/(1-x)=Σ(x^n)、e^x=∑(x^n/n!),考虑某种变换,让两个幂级数的系数1和1/n!分别对应于f(x)=1/(1-x)或f(x)=e^x,这很容易。其实拉普拉斯变换与这是对应的。教授用这种深入浅出的讲解,让我们了解了拉普拉斯变换的由来。然后分别计算了1、e^at、cos(at)等几种常见函数的变换,并讲解了指数位移的重要公式。大名鼎鼎的拉普拉斯变换,其实并不难。









学英语单词
0371
acid-resistant cement
alyse
Antarctogea
antiparallax mirror
atomize(-se)
automated gas chromatographic analysis
automatic star tracking
buckjumper
bumpster
Canthocamptus carinaeus
coefficient of moisture absorption
corkin' it
electrical train indicator
electro hydraulic servomotor
Emmanuilovka
Eofalodus
filtered air
flexible drive
fork-up
four sheets to the wind
freight management
funtional symbol
give voice to sth
glass fiber reinforced plastics (gfrp) ship
glogger
grillsteak
guy ritchie
gy-o
head downward
high speed adapter address
homonuclear double resonance
housing pin
hyperleptene
impulsive noise signal
internationally-recognised
interview survey
involve yourself
lag-lead
lazy daisy (stitch)
legal retrieval
let someone down softly
lie flat
match plate molding
maximal expiratory rate of flow
mixed process
multichine
mustagh ranges
newtech
nonlinear resonance
Norman Rockwellism
North Foreland
off-state current
over-etch
photo acoustic spectroscopy
pleydells
polyneme hypothesis
pork sword
potassium mercury sulfide
PQA
precipitate out
principal source of international law
Quemado, Pico
rabbit-oh
regrazing
reinterment
ring rope
risee
runner's diarrhea
saboed
safety of property at sea
Sayyad
scar contracture of palm
sciophyllous
ship call sign
simultaneous processing
single ballot
sleeping compartment
slowballs
spiro union
steam conduit
stress etching
supersonic crack detector
tacan distance indicator
take one day at a time
take our place
tarnishproof board
technotards
Thouin, Cape
tintometry
transparent nose
Tricotiazil
true skin
two-fold diffraction
two-out-of-five code
unamortised
vicarious hemorrhage
wall roughness
water reuse
water-moistened
wiper
worked out