So there, the model would have been all three equations.

De Sitter developed similar model and obtained equations for expanding universe.

Exact equations.

Separable equations.

That's true with regular equations or differential equations.

The whole point in learning differential equations is that eventually we want to model real physical systems.

Math, differential equations.

No? Nonlinear equations?

And doing equations.

Equations, that's math.

Whenever we solve these differential equations analytically, we're really just trying to get a pure model of something.

Solve Chemical Equations Viewer

Add the two equations.

linear equations right here.

Equations. The universal language.

So the differential equations.

It's on quadratic equations!

05 is very tempting, but regular expressions are string equations, not mathematical equations.

Model

Model

Model

Model

Generate images from LaTeX equations

Two equations and two unknowns.

Differential equations are something different.

That's one of our equations.

Here are our equations again.

least the solvable differential equations.

Two equations with two unknowns.

That's why they're called 'equations.'

You encode it into equations.

I have separated the equations.

So I'll compare model one to model three and I'll compare model two to model three.

solve the systems of linear equations by graphing. and they give us two equations here.

When we say system of equations, we just mean many equations that have many unknowns.

And this first class of differential equations I'll introduce you to, they're called separable equations.

And you're like, Sal, you just said that differential equations, we're learning to model things, why is this type of a function useful?

It satisfies both of these equations.

Two linear equations of to unknowns.

Let's just add these two equations.

And all the equations break down.

But now we have to equations.

So it does satisfy the equations.

Printer model

Printer Model