Can you study differential equations without finishing integral calcul

thedailyshoe
Messages
10
Reaction score
1
I mean is it possible? would it be a problem?
 
Physics news on Phys.org
Yes. The most basic differential equations are the ones which you can just integrate to get the answer. If you didn't finish integral calculus, it will be very hard for you to understand those calculations.

As integration is the inverse of differentiation, there's really no way to rigorously study differential equations without understanding integrals.
 
Matterwave said:
Yes. The most basic differential equations are the ones which you can just integrate to get the answer. If you didn't finish integral calculus, it will be very hard for you to understand those calculations.

As integration is the inverse of differentiation, there's really no way to rigorously study differential equations without understanding integrals.

hey but i already finished differential calculus last sem and my grades were beautiful.. can't it help with differential equations? i mean both are "differential" so arent they similar?
 
thedailyshoe said:
hey but i already finished differential calculus last sem and my grades were beautiful.. can't it help with differential equations? i mean both are "differential" so arent they similar?

Sure it "helps", but it's not sufficient. Literally the easiest differential equation is this one, which involves an integral:

$$\frac{df}{dx}=f$$

You solve this by basically splitting up the differential and integrating (slight abuse of notation):

$$\int \frac{df}{f} = \int dx$$

Giving you:

$$\ln(f)=x+C$$
$$f(x)=Ae^x$$

Solving differential equations very often involves integrating because integrating is the "inverse" so-to-speak of differentiation.
 
Thread 'Direction Fields and Isoclines'
I sketched the isoclines for $$ m=-1,0,1,2 $$. Since both $$ \frac{dy}{dx} $$ and $$ D_{y} \frac{dy}{dx} $$ are continuous on the square region R defined by $$ -4\leq x \leq 4, -4 \leq y \leq 4 $$ the existence and uniqueness theorem guarantees that if we pick a point in the interior that lies on an isocline there will be a unique differentiable function (solution) passing through that point. I understand that a solution exists but I unsure how to actually sketch it. For example, consider a...

Similar threads

Replies
7
Views
3K
Replies
14
Views
5K
Replies
16
Views
930
Replies
25
Views
3K
Back
Top