The Blocks menu and Menu Browser list the standard blocks provided with Embed. You can also access blocks from the Blocks toolbars. For most blocks, the corresponding mathematical function is included. The following table explains the symbols that may appear in the function:
Symbol 
What it represents 
A 
Amplitude 
e 
Napierian constant 
dt 
Derivative with respect to time 
lb 
Lower bound 
mod 
Modulus 
s 
Laplacian operator 
t 
Time 
ub 
Upper bound 

Frequency 
x 
Input signal 
y 
Output signal 
Input signals are represented as x_{1}, x_{2}, …x_{n} where x_{1} represents the topmost signal entering the block. When n is omitted, x_{1} is assumed. Output signals are represented as y_{1}, y_{2},…y_{n}, where y_{1} represents the topmost signal exiting the block. When n is omitted, y_{1} is assumed.