# Ode and pde-the major difference

1. Feb 14, 2006

### chandran

i will express some function y as follows as its ordinary derivative

dy/dt=y

(can i say like this-the change in y value with respect to change in t value at the point t will be equal to the y value at t)

Can somebody explain a partial derivative like the above statement

What is so special in a partial differential equation that it requires so many methods as follows. What is the difficulty that makes the ode and pde different in their solution

1)fem
2)bem
3)fdm
4)fvm

2. Feb 19, 2006

### total chaos

don't mind but what do u'r short forms , viz
1)fem
2)bem
3)fdm
4)fvm
mean???

3. Feb 22, 2006

### arildno

I would hazard:
1) Finite element method
2) ?
3) Finite differences method
4) Finite volume method

These are all NUMERICAL methods, none of them are "required", but options that have shown themselves handy in solving diff.eqs.

4. Apr 20, 2006

### kam.epi

Ordinary Differential Equations are equations that involve solutions of functions of single variables.

Therefore, f(x) etc....

Partial Differential Equations are equations that involve solutions of functions of multiple variables.

So for instance f(x,y)

5. Apr 20, 2006

### HallsofIvy

Staff Emeritus
bem: bug eyed monster? I.e. appealing to an alien race to solve your equations for you!

6. Apr 20, 2006

### 0rthodontist

7. Apr 21, 2006

### J77

Is that the same as the common Boundary Value Problem...