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Differential Equations

Mixed approximation vs. full approximation for a power series expansion
6.8K threads
Undergrad Mixed approximation vs. full approximation for a power series expansion
Undergrad Extremal condition in calculus of variations, geometric
  • jonjacson
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7
Does the Sequence Converge or Diverge?
  • karush
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2
Evaluation of definite integral (is it correct?)
  • Noah1
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3
Undergrad Are the functions for mixed derivative always equal?
  • Aldnoahz
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7
Undergrad How does the change in area compare to the differential area element?
  • member 428835
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5
High School Why differential of e^x is special?
  • fission
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3
High School Confusion regarding area of this figure
  • Prem1998
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4
Undergrad Laplace transformation of nested function
  • chester20080
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1
High School Given circle, find the line of bearing of tan lines thru 0,0
  • srcs
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5
Undergrad What is the derivative of the inverse secant function?
  • askor
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10
Graduate How Does Dimensionality Influence a Polynomial Integral?
  • spaghetti3451
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How Do You Calculate Position from Velocity at Time t?
  • karush
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2
Evaluating Integrals: ∫_(-4)^1[f(x)]dx = (-125)/6
  • Noah1
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2
Undergrad How Do You Simplify ν∇⋅(ρν)?
  • echandler
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1
Finding area (application of definite integral)
  • Noah1
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9
Undergrad Question about Contour Integration
  • Apogee
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3
Find $\tan(2x)$ Given $\cos(x-y)$ and $\sin(x+y)$
  • kaliprasad
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3
High School Why can't degrees be used to approximate tan(46)?
  • Prem1998
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11
Find f(a+b): $f(x)=\dfrac {2^x+2^{-x}}{2^x-2^{-x}}$
  • Albert1
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2
Need help on Fourier Series (badly)
  • jimmy93
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1
What is the correct solution for $\int_{0}^{1}x\sqrt{18-2x^2} \,dx$?
  • cbarker1
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1
What Is the Derivative of 4f(x) at x = 6?
  • Teh
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2
Undergrad Velocity with respect to arclength is a unit tangent vector?
  • Aldnoahz
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5
Undergrad Differentiability of multivariable functions
  • Sho Kano
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9
What is the inequality form for a decreasing curve's slope?
  • Teh
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7
High School Learning Integrals with the Graph of y=x^2
  • Stephanus
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6
Ratio Test for Sum $\tiny{206.10.5.84}$
  • karush
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3
Finding Max and Min of $sin(x)sin(y)$ given $x+y=\dfrac {2\pi}{3}$
  • Albert1
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3
Find Derivative: Solve G'(3) Problem
  • Teh
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7
What is the radius of the oil slick after 10 minutes?
  • Noah1
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2
Sum of Infinite Series: TI and Book Solutions
  • karush
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2
Undergrad Can we remove the arbitrary function?
  • flower321
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1
How Can I Solve for B in My Math Problem?
  • Teh
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7
Undergrad How is the Limit of This Sequence Determined?
  • Buffu
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21
Supposed to use the root and ratio test
  • karush
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2
Finding f/g: Composite Functions
  • needhelpplease
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4
Can anyone simplify any of these questions?
  • hmhmherath
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3
Use the techniques of geometric series
  • karush
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4
206.8.7.47 int sin(10x) cos(5x) dx Simpsons rule
  • karush
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206.10.3.17 Evaluate the following geometric sum
  • karush
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6
Finding Slope of Tangent Line: How-To Guide
  • Teh
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1
High School Is 0.999... really equal to 1?
  • Kaura
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4
Undergrad Legendre Differential Equation
  • TimeRip496
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15
What is the volume of the solid bounded by two paraboloids?
  • cbarker1
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6
High School Help with understanding Nature of Roots for Quadratic and Cu
  • Zakariyya
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1
Undergrad Determining the flux of an arbitrary vector function
  • DarkBabylon
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2
Find the Slope of a Curve y=f(x) at (a,f(a)) - Determine a f
  • Teh
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2
242.10.3.27 using the geometric formula of a sum
  • karush
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7
Undergrad Limit with integral and absolute value
  • Genilson
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11
How do evaluate this limit because i will get 2.6667 and divide by -144
  • Teh
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6
Graduate Integration of velocity and thrust angle equation
  • tomwilliam2
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2
Graduate How to Maximize a Nonlinear Function with Limited Variables?
  • ericdavid
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18
Math Trick: How to Turn 1/25 Into 10 - Step by Step Guide
  • Teh
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3
10.3.54 repeating decimal + geometric series
  • karush
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2
Undergrad Help to understand second order differential definition
  • jonjacson
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1
What are the y limits for finding the volume of a solid with given parameters?
  • cbarker1
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5
Undergrad Integration - chain rule / functional
  • binbagsss
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20
High School Absolute convergence Text Book question: Boas 3rd Ed
  • Battlemage!
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4
High School Which Calculus book has the most useful formulas and tables for problem-solving?
  • chris bedford
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1
Undergrad Motivation for Fourier series/transform
  • MexChemE
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8
What is the answer after convergence in TI-Nspire CX CAS?
  • karush
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3
Graduate Does the maximum value of the following integral exist?
  • Tspirit
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4
Series using Geometric series argument
  • karush
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2
Undergrad What is the Upper Bound of this Summation?
  • mooncrater
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6
Undergrad Is Euler's Identity Applicable to Transforming f(x)=constant*e^(-x^2)?
  • zpatenaude37
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5
Undergrad Solving a Reverse Series Problem in College Calculus
  • Dr. Courtney
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6
Undergrad Gaussian integration for complex phase
  • spaghetti3451
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1
Proving Limit of Piecewise Function at x=0
  • Harambe1
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2
Find the derivative using implicit differentiation (with inverse trig functions)
  • Umar
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2
What is the Formula for the Sequence 242.9.1.24-26?
  • karush
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10
205.23 related rates sphere volume
  • karush
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6
What is the limit of $\frac{n^2}{2^n}$ as $n$ approaches infinity?
  • karush
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6
High School Does the following cross product identity always work?
  • em370
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2
Is There a Discrepancy in the Bacteria Growth Formula?
  • karush
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4
Undergrad What will be the 4th axis of a 3d curl?
  • malfoy23111995
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1
Graduate Integrating definite Heaviside function
  • bfeinberg
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3
Undergrad How do you know when ∞ - ∞ is zero?
  • Battlemage!
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6
High School The Significance of the Smallest Non-Zero Derivative for a Polynomial Function
  • MiLara
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9
Definite Integration: $$\int^{\frac{\sqrt{5}+1}{2}}_{1}$$
  • juantheron
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1
Graduate Convergence properties of integrals
  • spaghetti3451
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15
Undergrad Alternating partial sums of a series
  • spaghetti3451
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8
Solve [ASK] Limit of Cosine: How to?
  • Monoxdifly
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7
High School How Do You Simplify 12/4 in an Indefinite Integral?
  • NickTesla
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6
High School Natural exponential function, calculus
  • Medtner
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2
Identifying Vertical Asymptotes: A Non-Factoring Method
  • Teh
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6
-z78 first four terms of the sequence of 𝑎_(𝑛+1)=𝑎_𝑛+𝑛,𝑎_1=−1.
  • karush
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Thanks for catching that! I will make the corrections.
  • karush
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6
Graduate Who can help evaluate this integral?
  • Chestermiller
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4
Undergrad What Defines an Improper Integral?
  • NihalRi
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2
Undergrad Definitions of the Riemann integral
  • Frank Castle
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14
Undergrad Predicting Particle Trajectories in a Velocity Field
  • member 428835
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2
Undergrad A-level differentiation/derivative dilemma
  • Martin Harris
  • · Replies 38 ·
2
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38
What's the use of subtangent and subnormal lines?
  • logan3
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1
Solving Maximisation Problem with Sections a, b, c
  • tomc612
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3
L-Hospital's Rule: Limit Calculation
  • karush
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12
What is the difference in writing the range of values of a function
  • mathlearn
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3
Undergrad Different types of vector fields?
  • Hacca
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3
Rate of Change in Area of Triangle with Fixed Sides
  • karush
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2
Undergrad What is the difference between d/dx and d/d(x^2) in differentiation notation?
  • Belgium 12
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2
Graduate Integration using delta function and step function
  • spaghetti3451
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3