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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
Partial Derivatives: Find $\frac{\partial f}{\partial x}$ for $y=x^2+2x+3$
  • OhMyMarkov
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6
Graduate Help with Derivation of Euler Lagrange Equation
  • Whenry
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9
Undergrad Which method is correct for finding the derivative of y = x^x - C and why?
  • Hertz
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7
Undergrad Indefinite Integration: Explaining the Point Behind It
  • Bashyboy
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1
Undergrad Does anyone know the best way to show this limit does not exist?
  • AxiomOfChoice
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12
Undergrad Understanding Inf & Sup in Riemann Sums
  • Bashyboy
  • · Replies 5 ·
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5
Graduate Minimizing x in "(A+Bx)/(1-e^(-βx))-(B/β)
  • techiejan
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9
Graduate What Do Mathematicians Think of Physicists Cancelling dx?
  • ShayanJ
  • · Replies 3 ·
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3
Choosing Limits for Volume Integrals
  • GreenGoblin
  • · Replies 2 ·
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2
Calculating $\partial f$ for $f(r, \theta) = r\cos \theta$
  • OhMyMarkov
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2
Graduate Why Are There Three Terms in the Differential Expression?
  • Uku
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5
Is factoring out of limits allowed?
  • hatelove
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2
Solve System of Equations with Real Numbers
  • juantheron
  • · Replies 3 ·
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3
Undergrad Newton's Principia translated and Writings of Leibniz?
  • Concavity
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3
Undergrad Relationship between Differentiation and Integration?
  • Concavity
  • · Replies 5 ·
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5
Undergrad How Can the Second Derivative at a Maximum Be Zero?
  • Mathsforum100
  • · Replies 1 ·
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1
Undergrad The derivative of a Taylor series?
  • badamann
  • · Replies 8 ·
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8
Undergrad Significance of derivative for functions of several variables
  • AAQIB IQBAL
  • · Replies 4 ·
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4
Graduate Is there a general method to aproximate functions with ratios of polynomies?
  • viraltux
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6
Graduate Variable transformation in a derivative
  • Joschua_S
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2
Graduate Finding Normal Vectors to Surfaces of Revolution
  • Kalidor
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3
Graduate How to Solve Equations with Integrals Using FTC and Chain Rule?
  • 6.28318531
  • · Replies 5 ·
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5
Graduate Fourier Transforms is Inflicting Pain
  • Nano-Passion
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6
Graduate What is the symbol of an integral operator?
  • Crot
  • · Replies 2 ·
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2
Functional Equation: Solving for f(2012)
  • juantheron
  • · Replies 2 ·
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2
Undergrad Integration result ln || - confusing and apparent contradictions
  • spaghetti3451
  • · Replies 4 ·
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4
What is the minimum value of a trigonometric expression with a given condition?
  • juantheron
  • · Replies 7 ·
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7
Simplifying (x+3)1/2 - (x+3)3/2 Expression
  • PaperStSoap
  • · Replies 8 ·
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8
Solving for Optimal Advertising Units in Managerial Economics
  • HighAllegiant
  • · Replies 2 ·
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2
Graduate Solution to the integral,i.e, expected value of a function of normal variable
  • ait.abd
  • · Replies 8 ·
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8
Graduate How to Calculate the Volume of a Sphere with an Off-Center Hole?
  • gwiz
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1
Undergrad Derivatives of functions and equality of those functions
  • Niles
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2
Graduate Evaluate Series Convergence Analytically
  • Max.Planck
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7
Graduate Using lagrange mutilpliers when lamda has two values
  • hivesaeed4
  • · Replies 8 ·
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8
Order of Expression: c,m,logm,2^j-1/2, m^o(logm) Explained
  • bincy
  • · Replies 3 ·
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3
Undergrad Derivation of formula for general formula of sine equations
  • autodidude
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2
Graduate Re{} and Im{} operators under the integral sign
  • eliotsbowe
  • · Replies 3 ·
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3
Integration Application: Find the force on each end of the cylinder
  • andvaka
  • · Replies 1 ·
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1
Graduate How Do I Calculate the Integral of e^x(lnx) and Anti-Derivative of x^x?
  • sumerman
  • · Replies 9 ·
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9
Graduate Uniform convergence and derivatives question
  • Boorglar
  • · Replies 4 ·
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4
Graduate Can We Make a Summation Zero When Coefficients are Not Equal?
  • EngWiPy
  • · Replies 7 ·
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7
Undergrad Integral to find the Surface area
  • c77793
  • · Replies 4 ·
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4
Graduate Is dx=0 a Valid Statement in Advanced Scenarios?
  • Arend Heyting
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4
Undergrad What is the meaning of partial differentiation in physics?
  • optics.tech
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3
Graduate Why this relation is true when computing the Gaussian integral?
  • Arian.D
  • · Replies 8 ·
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8
Graduate Numerical intergration of a set of measured data points
  • homim4
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3
Undergrad Is the Set {1/n: n is a Counting Number} Equal to the Interval (0,1]?
  • kimkibun
  • · Replies 1 ·
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1
Priyata G integral question from Yahoo Answers
  • CaptainBlack
  • · Replies 1 ·
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1
Graduate BiPDetermining Particle Path and Velocity from Acceleration Vector Field
  • Bipolarity
  • · Replies 5 ·
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5
Graduate Quick question on matrix calculus
  • majon
  • · Replies 3 ·
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3
Graduate Existence of the Square Root Proof
  • Ronnin
  • · Replies 5 ·
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5
Undergrad A simple calculation that got me stumped.
  • MathematicalPhysicist
  • · Replies 5 ·
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5
Graduate Delta function of two variable function
  • mimmim
  • · Replies 9 ·
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9
Graduate Composite Function with reccursive expression
  • joao_pimentel
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2
Undergrad Making a program to convert K(1+cos(nQ-phi)) to a power series
  • shitij
  • · Replies 3 ·
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3
Graduate Confused about continuity and limits
  • idk1029
  • · Replies 4 ·
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4
Undergrad The Correct Amplitude of a Fourier Transform
  • harmonics
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4
Undergrad How do you find the zeroes of a discrete function?
  • Frogeyedpeas
  • · Replies 6 ·
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6
Undergrad Why Does The Squeeze Theorem Justify Limits Of Upper And Lower Sums?
  • Bashyboy
  • · Replies 2 ·
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2
Graduate Embedding L1 in the Banach space of complex Borel measures
  • Undecided Guy
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2
Undergrad I have a question; well technically about calculus in general.
  • maistral
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6
Graduate What's the Paradox in Combining Sine and Cosine Series for Fourier Expansion?
  • ShayanJ
  • · Replies 8 ·
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8
Undergrad Partial Fractions: Numerator vs Denominator | Explained in 5:30
  • therajinator
  • · Replies 1 ·
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1
Finding an Upper Bound for ln(x) in [0,1]
  • bincy
  • · Replies 6 ·
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6
Undergrad Why Do Different Calculations Yield Varying Limits for e?
  • inverse
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2
Graduate What is the theory behind the partial derivative method for root-finding?
  • Hassan2
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3
Graduate Why consider Differential Element
  • koolraj09
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2
Graduate Definite integral of exp and error function
  • petru
  • · Replies 6 ·
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6
Graduate How Do You Compute the Convolution of a Convolution with Variable Limits?
  • muzialis
  • · Replies 2 ·
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2
Undergrad Calculating the launch speed from a launch angle, distance, and air density
  • CMPXCHG8B
  • · Replies 1 ·
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1
Undergrad ANOTHER really basic question this time regarding e
  • Mathguy15
  • · Replies 4 ·
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4
An upperbound for an algebraic expression
  • bincy
  • · Replies 3 ·
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3
Graduate Expanding Gamma function around poles
  • DMESONS
  • · Replies 3 ·
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3
Graduate Intuition for Change of Variables Theorem
  • mathmonkey
  • · Replies 9 ·
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9
Graduate Question about discrete Monte Carlo Summation
  • mgamito
  • · Replies 6 ·
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6
Graduate Multi-Variable / Dimension Fourier Transform
  • danmay
  • · Replies 2 ·
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2
Undergrad Identifying the harmonics on FFT
  • harmonics
  • · Replies 1 ·
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1
Undergrad Another really basic question this time regarding integration.
  • Mathguy15
  • · Replies 2 ·
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2
Graduate Analyitical solution to function and second deritive of function
  • munkifisht
  • · Replies 3 ·
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3
Undergrad Why is this a type II double integral?
  • Avatrin
  • · Replies 6 ·
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6
Graduate Logarithmic and exponential integrals
  • Millennial
  • · Replies 1 ·
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1
Graduate Ratio of two polynomial functions - integral
  • Perpendicular
  • · Replies 1 ·
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1
Undergrad Integral Sin(ax)^2 Between Infinity and 0
  • Nick789
  • · Replies 8 ·
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8
Graduate Solving π(x) with Varying Frequency Amplitudes and Fall-off Rate: A Case Study
  • tanus5
  • · Replies 1 ·
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1
Graduate What is result of this summation:sum(k=1, to n) sin(n*pi/k)I
  • Emilijo
  • · Replies 3 ·
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3
Undergrad Can I get a general function f(m,n)
  • Emilijo
  • · Replies 11 ·
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11
Graduate Fourier transform capabilities in reconstructing missing data
  • Gedelian
  • · Replies 3 ·
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3
Graduate How can I handle the singularity in my integrand equation?
  • Teg Veece
  • · Replies 2 ·
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2
Finding the Circumference of a Circle Using Improper Integrals
  • MacLaddy1
  • · Replies 2 ·
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2
Undergrad Does calculus fully solve Zeno's Paradoxes
  • rp.beltran
  • · Replies 20 ·
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20
Graduate Integrating a function of the complex conjugate of x with respect to dx
  • HilbertSpace
  • · Replies 7 ·
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7
Undergrad I need an algorithm to best-fit a curve
  • Jamin2112
  • · Replies 4 ·
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4
Graduate Nasty summation + derivative help
  • exmachina
  • · Replies 5 ·
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5
Undergrad Proof by induction, puzzles by answer
  • MegaDeth
  • · Replies 4 ·
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4
Graduate Why Repeated Roots instead of Two Distinct Roots
  • 12john
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2
Graduate What Is the Notation for the Incidence Function in Graph Theory?
  • woundedtiger4
  • · Replies 7 ·
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7
Undergrad Calculating Max Height & Time of Rifle Trajectory at 300 Yards
  • surferbarney0729
  • · Replies 4 ·
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4
Undergrad Solving Sequence: Prove Decreasing with n
  • dextercioby
  • · Replies 9 ·
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9
Undergrad Discrepancy Between Related Rates Solution and Vector Solution
  • Curtis15
  • · Replies 6 ·
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6
Sluggerbroth's Question from Math Help Forum
  • Sudharaka
  • · Replies 2 ·
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2