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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
What Are the Absolute Max/Min of f(x) Over Given Intervals?
  • riri
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Undergrad So I flip 10 coins... (re: limit of infinite? series)
  • nolxiii
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7
Find the tax rate t that maximizes revenue for the government?
  • vaultDweller96
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9
Undergrad Parameterize an offset ellipse and calculate the surface area
  • Thales Costa
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5
Undergrad Is the Jacobian Directional Derivative for a Sphere Correct?
  • rabbed
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15
Shortest distance between (18,0) and y=x^2
  • karush
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2
Explore Level Curves of $f(x,y)=x^3-x$
  • mathmari
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3
How Can You Solve for $a_n$ in the Sequence Given $2S_n = a_n + \frac{1}{a_n}$?
  • Albert1
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3
Graduate One dimensional integration that Mathematica cannot do
  • CAF123
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4
Modifying values to lie within existence domain
  • Siron
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1
Undergrad Plotting and visualizing a 3D plot of a vector function
  • Thales Costa
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4
Derivative of Integral: Does the $x^2$ Cancel?
  • karush
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6
Undergrad Confusion on the Volumes of Solids of Revolution
  • grafs50
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3
Undergrad Power series Construction Help
  • Euler2718
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3
Undergrad Struggling to understand how I get this answer
  • PizzaWizza
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4
High School Solving Naumann Equation: How Bessel's Second Kind Was Discovered
  • Aleen Muhammed
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1
Linearization of this equation / Inverse function
  • guiismiti
  • · Replies 4 ·
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4
Undergrad Cauchy Repeated Integration Explanation?
  • TheDemx27
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3
Graduate Solve Derivative Bessel Function (Type II & III) - Help Needed
  • Aleen Muhammed
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10
Undergrad How to Extract Data from an Integral
  • ecastro
  • · Replies 9 ·
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9
Spherical coordinates - Orthonormal system
  • mathmari
  • · Replies 7 ·
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7
Finding Cylindrical Points $(r, \theta, z)$ in Range
  • evinda
  • · Replies 3 ·
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3
How Do Cylindrical and Spherical Coordinates Represent the Same Point?
  • evinda
  • · Replies 3 ·
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3
Adjustments to lie within a circle
  • Siron
  • · Replies 2 ·
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2
Undergrad Hydrost Pressure Integration Problem (Environmental Physics)
  • MrGianmarcoD
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3
Is the Inflection Point at x = 7 Incorrect?
  • riri
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5
Undergrad Show that a particle moves over a circumference
  • Thales Costa
  • · Replies 14 ·
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14
Undergrad Gradient Vector- largest possible rate of change?
  • Jason Sylvestre
  • · Replies 1 ·
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1
Solving Limits: l'Hopital's Rule & Degree Rule
  • riri
  • · Replies 2 ·
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2
Undergrad Deriving the Area of a Circular Sector Using Integration
  • Noriele Cruz
  • · Replies 18 ·
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18
Differential and integral equation.
  • Guest2
  • · Replies 3 ·
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3
Undergrad Why Replace u with Positive s in Integral Manipulation?
  • Woolyabyss
  • · Replies 1 ·
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1
Undergrad General Nth Derivative f(x)=x^x: Solving a Difficult Problem
  • Euler2718
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5
Finding Lagrangian description of position from Eularian velocity description
  • serway
  • · Replies 1 ·
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1
Undergrad Integrating Sin(x): Solve the Area of a Half Circle
  • Karim Habashy
  • · Replies 2 ·
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2
Find Discontinuation Points of f(x) = x*[x]
  • Yankel
  • · Replies 1 ·
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1
Graduate Integral calculation (Most Difficult Integral)
  • FL0R1
  • · Replies 7 ·
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7
Finding the Position Vector of Point $B$ on a Line Segment Between $P$ and $Q$
  • Guest2
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2
High School Have you heard of using wedges in calculus to approach integration differently?
  • jerromyjon
  • · Replies 6 ·
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6
High School Doubt regarding least upper bound?
  • Alpharup
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5
Undergrad Is There a Significance to the Imaginary Number in the Series for Pi/4?
  • arydberg
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9
Evaluating $\displaystyle \int f(z)dz$ with $a>0$
  • polygamma
  • · Replies 3 ·
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3
Undergrad Calc III Double Integral Question
  • dropoutofschool
  • · Replies 4 ·
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4
Undergrad Complex Conjugates with sin and cos
  • Oaxaca
  • · Replies 4 ·
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4
Graduate Newtons Divided Difference First Derivative
  • NotASmurf
  • · Replies 3 ·
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3
Graduate Easy and useful way to calculate Log(a+b)
  • guifb99
  • · Replies 3 ·
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3
Undergrad Digging deeper into (implicit) differentiation and integration
  • NotEuler
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9
Undergrad How Can I Correctly Integrate e^(ix)cos(x)?
  • flux!
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5
Graduate Antiderivative and contour integration
  • Incand
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3
Revisit t the ladder optimization problem
  • karush
  • · Replies 1 ·
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1
Graduate Deriving this "familiar arccosine form" of integral
  • Odious Suspect
  • · Replies 6 ·
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6
Graduate How do I solve complex contour integrals in complex analysis?
  • matt_crouch
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5
Graduate Partial Derivative of a Definite Integral
  • zl99
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3
Graduate Is the Limit of an Irrational Sequence Also Irrational?
  • Physicist97
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1
Undergrad Exploring the Physical Application of Calculating Average Value of a Function
  • in the rye
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10
Graduate Summation Convention – Substitution Rule
  • FluidStu
  • · Replies 21 ·
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21
Sketch Graph: Domain 0<x<12 | f' Increasing, f''<0
  • riri
  • · Replies 2 ·
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2
Graduate Dealing w/slight modification of Gaussian integral?
  • Zacarias Nason
  • · Replies 1 ·
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1
Intial Velocity of an Object In Free Fall
  • KermitFrog
  • · Replies 10 ·
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10
Graduate Why does the summation of even integers result in infinity?
  • BOAS
  • · Replies 7 ·
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7
Graduate Div and curl in other coordinate systems
  • Jezza
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2
Concave Up or Down? Identifying Inflection Points in a Polynomial Function
  • karush
  • · Replies 4 ·
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4
Undergrad Calculus Derivations: Handbook, Rules, Properties & Books
  • samgrace
  • · Replies 6 ·
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6
Undergrad Understanding Integration of 1/(x^2 + a^2) and the Role of the Tan Function
  • lioric
  • · Replies 9 ·
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9
Undergrad Understanding the Chain Rule in Calculus Differentiation
  • lioric
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2
High School The limit of a function as x--> infinity
  • Matejxx1
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2
High School Why Does the Negative Sign Appear in Second Differentiation of Exponentials?
  • lioric
  • · Replies 2 ·
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2
Find Limit of Series w/o Quotations: 65 Characters
  • IHateFactorial
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1
Graduate Does (f(x_0))=0 guarantee that d^n/dx^n(f(x_0)=0?
  • Zacarias Nason
  • · Replies 16 ·
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16
Graduate Doubt on phase stationary method
  • Asteroid
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4
Graduate 2nd derivative change of variables
  • BrokenPhysics
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2
Undergrad Differentiability of piece-wise functions
  • 15adhami
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4
How to Integrate cos^2(x)sin^3(x) dx?
  • karush
  • · Replies 6 ·
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6
Undergrad I don't know yet how to integrate this function....
  • pabilbado
  • · Replies 8 ·
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8
Why Does the Vector Projection Formula Work?
  • evinda
  • · Replies 9 ·
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9
Graduate Question about the implicit function theorem
  • Gianmarco
  • · Replies 8 ·
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8
Graduate Nonuniform finite element method
  • aaaa202
  • · Replies 8 ·
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8
Graduate How to work out the area of an elliptical wing?
  • Superhornet
  • · Replies 10 ·
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10
Calculating the Time an Airplane Will Reach an Airport
  • evinda
  • · Replies 3 ·
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3
Function given, find values of x if...
  • Bia1
  • · Replies 1 ·
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1
Graduate How to Numerically Solve a Complex Multiple Integral in Physics?
  • Korbid
  • · Replies 1 ·
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1
Graduate Question about equations of 3D solids
  • Gianmarco
  • · Replies 3 ·
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3
Graduate Order of zero (complex analysis)
  • Incand
  • · Replies 3 ·
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3
Undergrad Tank Mass Balance Calculation for Designing w/ Automatic Float Switch
  • mudweez0009
  • · Replies 1 ·
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1
Graduate Sinc function as a sum of cosines
  • david316
  • · Replies 5 ·
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5
Undergrad Lim x->0: Why Can't I Replace (x-sinx)/(sinx)^3 with 1/(sinx)^2-1/(sinx)^2?
  • yairl
  • · Replies 2 ·
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2
Undergrad If a=b then integral(a) = integral(b) .... 1/2lnx =/= 1/2ln(2x) ?
  • Wanted
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5
Graduate Conditions for change of order in derivative of a partial
  • Othin
  • · Replies 2 ·
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2
PBM.1 Limit to Zero: $$\lim_{x\to 0} \frac{\cos 3x-1}{x^2}$$
  • karush
  • · Replies 5 ·
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5
Graduate [Traffic Flow] Concrete example of conservation equation?
  • cmkluza
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2
Graduate Improper integral done two different ways
  • nomadreid
  • · Replies 5 ·
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5
Graduate Proving Inequality: Can Partial Derivatives Help?
  • Physicist97
  • · Replies 3 ·
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3
Integrating $\sin^4 x$ to get $\cos^2 2x$
  • karush
  • · Replies 4 ·
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4
Graduate Numerically integrate bivariate function
  • sunrah
  • · Replies 4 ·
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4
Nature of real valued function f(x)
  • juantheron
  • · Replies 1 ·
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1
Undergrad Higher derivative means function is higher?
  • yairl
  • · Replies 5 ·
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5
Graduate Proof: integral of continuous function is 0 so function is 0
  • cmkluza
  • · Replies 11 ·
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11
Undergrad How Do You Integrate ##\int \tan 2x \ dx##?
  • askor
  • · Replies 3 ·
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3
Graduate Arc length in polar coordinates
  • Gianmarco
  • · Replies 3 ·
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3
Undergrad Basic implicit differentiation question
  • influx
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3