/sci/ - Science & Math

Might be dumb, but here's my problem :

I am numerically solving a PDE with respect to time and 1D space.
For the time part, I use forward euler. For the space part, I use some (allegedly) order 2 scheme.
I now want to experimentally check if the space scheme is indeed, of order 2, that is, using my simulation and not pen and paper. By doing so, I found that my solution is of order 1 and not 2.

My question :
Do I get a convergence of global order 1 because I am using forward euler in time , which just "eats" the finer approximation of my space scheme?
(My guess is I should implement a high order scheme for time, such as RK4, but god damn...)

I would appreciate any kind of help, please.

>another "pseudoskeptic reddit atheist vs. 'based schizo' reddit (but was banned) christfag" thread
The actual /sci/ position is agnosticism and cautious interest in parapsychology.

So why does NASA still exist? Its not the 60s, we have SpaceX

The climate has been changing at a steady pace for eons now, and suddenly because humans start consuming the tiniest amount of resources and everso slightly change a few years its a global crisis? Many of these events happened in recent history before the industrial revolution, why does it matter now?