HP 35S Memory questions

[JeremyBeck]

I have tried different combinations in order to see how much memory an equation uses on an HP35S and have some interesting results.
I entered an equation with just a single 0 and that took 38 bytes of memory (30,192-30,154). I also tried twenty zeros and that also took 38 bytes of memory.
I then tried the following:

Code:

(IP(Q÷2)X180)-(COS(QX180)XB)

Which also took 38 bytes of memory. When I added the store A to get

Code:

 (IP(Q÷2)X180)-(COS(QX180)XB)►A

That took 41 Bytes of memory. I then tried

Code:

0►A

Code:

 SIN(1)►A

and

Code:

COS(1)xSIN(1)

These took 38 Bytes of memory.
I have used my emulator to get these numbers. When I try an actual calculator I get 35 bytes instead of 38.