View Full Version : Differential Equations
- I need help with this problem....
- Free response question for AP calc.: f = sqrt[1 - sinx]
- Help: figure out fourth constraint
- linear equations
- one train goes west at 130 kph. 3 hrs later, another....
- Area of the Region
- Problems with equations
- word problem for medical math
- Prove by Induction that 4 + 8 + 12 + ... + 4n = 2n^2+2n
- Differential Equations and Rates
- I need help from the gurus
- differential equations
- Can someone assist me?
- Laplace Help
- Logistic Differantial Equation
- Please Help me solve this
- laplace's equation - disc
- Diff equation (xy' - 2y = x^3 e^x)
- help please (logistic equation)
- help again (temperature between two spheres)
- help with Laplace transform of tangent function
- Two Questions: Laplace transform, general sol'n
- Concentration of a solution over time
- "Abel's ODE of the 2nd Kind, Class C"
- homogenous second-order differential equations
- linear second order differential equation
- differential equations: bacteria growing in a lab culture
- Difficulty with an initial value problem.
- Dirichlet Boundary Value on Disk Problem
- gen. soln. to diff. eqn: dx/dy= (xy^3)/(2y^4 + x^4)
- find the general solution of y"-5y'+6y=0
- Vibrating Spring (Solving nonhomogeneous equations)
- help me solve this: (2 + y)(dy/dx) = (4 + y^2)
- first order systems of equations--- HELP!
- Please help me find the gen. sol'n V(P) for....
- Please help me find gen. sol'n for X(x) and T(t)
- homogeneous equation solution help
- [MOVED] gen. solution of diff eq. dr/dp = 2 sin p
- Nonlinear Diff Eqn: d^2y/dx^2 = V(X)y(x) - Ey(x)
- help: G ~ square (~ / $ / ?) H
- need help on Laplace Transform!
- Minimum volume word problem
- A cup of coffee anyone? (Newton's Law of Cooling)
- First order of equation: (dy/dx) + (cot x)y = csc x
- Find general solution of 2sqrt(x)(dy/dx) = sqrt(1 - y^2)
- Having trouble getting y by itself after integrating
- Find general solution for this separable equation.
- [SPLIT] general soln of [x csc(y/x) - y] dx + xdy = 0
- Differential Equations help: verify that...
- Euler Method
- [MOVED] partial integration: int ye^xy dx= e^xy
- Equation Nomenclature
- simple def eq problem, giving me lots of problems
- [MOVED] Differential Eqn- du/dt = e^(3u+3t)
- First order diff equation : x' lnx'=1/2 * c
- Find exact solution to dy/dt = (y - 1)(3 - y), y(0) = 5
- The cumulative human population of planet Earth.
- [MOVED] Given this Lotka-Volterra model system, show that
- Differential eq y'(t) + y(t) * x'(t) = -2x(1)
- Read Before Posting!
- Solving differential equation
- Solving DE eqn: x + 2ysqrt[x^2 + 1](dy/dx) = 0, y(0) = 1
- 2nd order linear w/ b^2-4ac<0: y''+4y'+8y=0, y(0)=1, y'(0
- Linear Algebra: solve system; show soln space as vector span
- First Order Homogenous Differential Equation
- Need Verification: [x(t)]^2 - 2[x'(t)]^2 = c where c is some
- 2nd Order differential eqn: x"(t) + 4x'(t) - 5x(t) = 9
- HELP!!: Laplace 2D equation on a square
- differential equation dy/dt = py^(1 + b), p > 0
- differential equation dy/dt = ky^(1 + c), k > 0
- Nonhomogeneous differential equation: y"+2y'+y=xe-x
- Implicit differentiation
- y'=(1-xy)^(1/2) -- what type of DE is this?
- modeling w/differential equations
- solve y' = (10yx - y) / (5x^2 - x) with y(1) = 8
- solving simultaneous equations
- find general soln for dP/dt = [bkPe^(-kt)] / [1 - be^(-kt)]
- Coordinate Transformation to solve Laplace Equation
- Differential Equation e^2x dy/dx = xcos^2y
- IVP using laplace transforms
- First order DE prob: find the family of curves that....
- Show that y = 4/(1 + Ce^(-4t)) solves y' = y(4 - y)
- problem with last step in differential equation and solution
- models of motion: A stone is released from rest and....
- freefall: A parachutist of mass 60 kg free-falls from an....
- Question About A Separable Equations Problem
- mixing problems: A tank initially conatins 100 gal of....
- IVP prob's: ydy/dx = x/sqrt1 + y2, y(0) = 1; etc.
- solving exact differential eqn: (1-ysinx)dx + cosx dy = 0
- x(t) = ae^(bt) + ct is soln to ODE d^2/dt^2 = 16e^(4t) / x
- which equilibria are attractors, repellors, or neither?
- describing asymptotic behaviour of soln of ODE
- solving a linear equation
- Solving a homogenous equation
- decay prob: find limiting amt of radium over time
- Help me with this...
- Euler Equation
- Compartmental Analysis
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