Hi,
EasyEDA is powered by Ngspice, so we don't need a dot.

Hi Robert,

Thanks for your excellent tutorial!

In ngspice, commands can be run directly in the netlist in the normal way. These commands need a '.' in front of them.

Ngspice also allows commands to be run in a script form using a

.control
:
:
:
.endc

control block structure.

There is an extended set of commands - which include all the 'normal' ones - that can be used inside this block. This extended set of commands do not have a '.' in front of them.

PLease have a look at:

http://ngspice.sourceforge.net/docs/ngspice-manual.pdf#subsection.2.13.3

:)

but the netlist from easyeda with block
...
.control
xxxx
xxxx
xxxx
.endc
...
is not working in easyeda and the netlist with dots is working
.XXX
.XXX
.XXX

Can you share your design with me? I would like to check what is the problem.