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Differential Equations

Mixed approximation vs. full approximation for a power series expansion
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Undergrad Mixed approximation vs. full approximation for a power series expansion
How Do You Integrate (1 - e^(2x)) / e^x?
  • renyikouniao
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Answer Lim(x->infinity)e^(-x)coshx and Lim(x->1)[(e^x-1)/In(x)]sinhx
  • renyikouniao
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5
Integrate x/(4-x^4)^0.5: Solution
  • renyikouniao
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11
How Do You Solve the Integral of Cos(ln(x))?
  • Pedro1
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Graduate Solving a vector equation which seems to be indeterminate.
  • plasmoid
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Undergrad Slope at point X and the next closest value to X
  • Atran
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5
Undergrad How to Disprove a False Limit Using Epsilon-Delta Definition?
  • Alpharup
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4
Use the Ratio Test for Convergence/Divergence
  • Fernando Revilla
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Graduate Ito integral of an arbitrary f(Wiener process)
  • saminator910
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1
?'s questions at Yahoo Answers regarding optimization
  • MarkFL
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Graduate Why does it work only when h tends to zero?
  • mpx86
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3
S N's question at Yahoo Answers regarding revenue maximization
  • MarkFL
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1
Graduate Measurable spaces vs. topological spaces
  • LikeMath
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8
Graduate Is it possible to perform supremum with two parameters in the same function?
  • St41n
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2
Integration in polar coordinates
  • Fernando Revilla
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1
Sunshine's questions at Yahoo Answers regarding solids of revolution
  • MarkFL
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1
Undergrad A question on notation of derivatives
  • Lemniscates
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3
Undergrad When is Multiplying or Composing Functions Useful?
  • armandshamar
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3
Graduate Conservative overdamped harmonic oscillator?
  • inkliing
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2
What is the Velocity of a Body at the Highest Point in Vertical Circular Motion?
  • DrunkenOldFool
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Undergrad Graphing and Limits for Improper Integrals
  • Dan350
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1
Graduate Why is the sum of 1/(n2^n) from 1 to infinity equal to log 2?
  • subsonicman
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4
Graduate How Can Division Work with Differential Operators?
  • muzialis
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14
Graduate Chain Rule Variation: Does g Need to be Invertible?
  • BucketOfFish
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8
Reid's question at Yahoo Answers regarding related rates
  • MarkFL
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1
Graduate Why/how does integral of solid angle = pi?
  • ck99
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Graduate Integrating Difficult Gaussian Integrals for Multivariate Normal Distributions
  • unchained1978
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4
Graduate Is this supposed to be trivial?, or can it be proved?
  • bobby2k
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5
How to sketch the graph of a function
  • Petrus
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3
Undergrad Why is Pi Irrational for Circles?
  • rajeshmarndi
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38
Sum of a Complex Fraction Sequence
  • anemone
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4
Undergrad Alternating Series Convergence Test
  • cp255
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7
D4ncelife's question at Yahoo Answers regarding optimization of trapezoidal area
  • MarkFL
  • · Replies 1 ·
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1
Graduate Basic Stochastic Calculus Question, why does dB^2 = dt?
  • saminator910
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1
Graduate Vector Transformation in Cartesian and Polar Coordinates
  • Septim
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5
Undergrad How Does x! Compare in Growth to x^2, 2^x, and x^x?
  • cp255
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4
Undergrad Compare Functions: Which is Better?
  • klinmy
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5
Parametrizing Z=y^2-x^2 & f(x,y)=(-x,-y,z)
  • mathmari
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8
Dexter's question at Yahoo Answers regarding related rates
  • MarkFL
  • · Replies 1 ·
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1
Graduate Constant tangential speed along arbitrary parametric curve
  • aaddcc
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3
High School Learn Calculus: Resources for Beginners
  • Abscissas
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6
Undergrad Simple partial derivative question
  • leehufford
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3
The chain rule (General version)
  • Petrus
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3
Undergrad Conic sections vs multivariable functions
  • leehufford
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7
Graduate Writing Fourier Series for Open and Closed Intervals
  • aaaa202
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1
Undergrad A Simple Salt Solution Mixing Problem - yet stuck
  • Rokas_P
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5
Graduate Fundamental theorem in 2 dimensions.
  • bobby2k
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2
Area of Two Functions: Find the Answer!
  • Petrus
  • · Replies 7 ·
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7
Solving a problem with the shell method
  • Petrus
  • · Replies 11 ·
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11
Undergrad Change of variables from one set of coordinates to another in Fourier
  • anhnha
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5
Graduate Does the sum of ln(k/(k+1)) converge or diverge as n approaches infinity?
  • cp255
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Does This Series Diverge Without Using the Limit Comparison Test?
  • VincentP
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2
Undergrad Unlock the Most Challenging Integrals with Jacob
  • pierce15
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2
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32
Undergrad Can a 2nd degree parametric equation be turned into cartesian?
  • mpatryluk
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2
Undergrad Can it be argued that derivatives should be undefined?
  • CuriousBanker
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23
Undergrad How to minimise this function and get initial conditions
  • Bharatisha
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1
High School Are All Equations Considered Differential Equations in Calculus?
  • kevinnn
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8
Graduate Calculus: 1000 Mile Dimension Sans Thickness
  • oahz
  • · Replies 28 ·
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28
Solving Equation 4: Progress & Questions
  • Petrus
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3
How do Shifts Affect Invertible Functions?
  • renyikouniao
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17
Does ln(x - √(1 + x^2)) really have a real part?
  • SweatingBear
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16
Are f(x)=ax+cos(x) and g(x)=ax+sin(x) Invertible for a<-1?
  • renyikouniao
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9
Undergrad Absolute Exponential Integration
  • M. next
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3
Is understanding limits necessary for senior-level real analysis?
  • SweatingBear
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22
Graduate Solve Series S_n: 1056, 1088, 1120, 1332
  • klen
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2
Undergrad Integrating Fractions with Substitution
  • cp255
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3
High School Understanding Horizontal Trig Graph Translations
  • tg22542
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2
Partial Derivatives of the cosine rule.
  • Kris1
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12
Calculate Integral: $\int_0^1 \frac{(1-x)e^x}{x+e^x}dx$
  • ipaper
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1
Undergrad Basic Multivariable Proof Equating Determinant to dot/cross product
  • CubicFlunky77
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4
Concave Downward Function and Average
  • renyikouniao
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3
Calculating Work Done: Elevator Problem
  • renyikouniao
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7
Find the volume of the solid obtained by rotating the area?
  • renyikouniao
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5
Sarah's question at Yahoo Answers regarding a sinusoidal function
  • MarkFL
  • · Replies 3 ·
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3
Can You Solve These Two Difficult Integrals?
  • sbhatnagar
  • · Replies 4 ·
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4
Men's question at Yahoo Answers regarding a volume of revolution
  • MarkFL
  • · Replies 1 ·
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1
Graduate Work of Carnot Engine integral
  • mathnerd15
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7
Graduate How can Sine Integrals be calculated using polynomial representations?
  • TheDestroyer
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23
Graduate Gradient theorem for time-dependent vector field
  • dEdt
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4
Undergrad Calculus 2: Advice on Summer Learning/Teaching
  • Dan350
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1
Graduate Existence of non-orientable surface parametrized by periodic variables
  • nonequilibrium
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4
How to Solve the Limit lim x→-∞: x²e^x?
  • Petrus
  • · Replies 2 ·
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2
Tom's question at Yahoo Answers regarding solving for a limit of integration
  • MarkFL
  • · Replies 1 ·
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1
How to use Taylor series to represent any well-behaved f(x)
  • DeusAbscondus
  • · Replies 7 ·
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7
What Does Sigma Notation Tell Us About Evaluating e^x?
  • DeusAbscondus
  • · Replies 1 ·
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1
Summing Infinite Series with Dilogarithms
  • sbhatnagar
  • · Replies 2 ·
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2
Xojessilynox's question at Yahoo Answers involving integration
  • Chris L T521
  • · Replies 1 ·
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1
Undergrad Improper Integrals and Series (convergence and divergence)
  • Lebombo
  • · Replies 3 ·
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3
Graduate How to derive [itex]\lim_{n\rightarrow ∞} \frac{1-r^{N+1}}{1-r}[/itex]
  • Lebombo
  • · Replies 3 ·
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3
Graduate Real life Optimization problem
  • bozmonster
  • · Replies 9 ·
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9
Undergrad Difference between 2 Sum of n terms of geometric series formulas
  • Lebombo
  • · Replies 1 ·
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1
What is the minimal distance between y=e^x and y=\ln x?
  • anemone
  • · Replies 1 ·
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1
High School Whats the History of the Integral?
  • kevinnn
  • · Replies 4 ·
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4
Undergrad Is Calculus 2 a Good Option for a Summer Course?
  • Dan350
  • · Replies 3 ·
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3
Graduate Numerical solution for an integral equation?
  • Asban
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5
Is this integral evaluation valid?
  • bmanmcfly
  • · Replies 2 ·
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2
Minimum speed (~V3N0M~'s question at Yahoo Answers)
  • Fernando Revilla
  • · Replies 10 ·
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10
Graduate What is the solution for the troublesome integral?
  • muzialis
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4
Summation: Evaluate \sum_{n=1}^{\infty}\frac{a^{n}}{n^{1-m}}
  • bincy
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1
Undergrad How to Derive Euler's Identity?
  • DiracPool
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2