Input notation

I would enter the dynamic boundary condition from a key pad as 

[Graphics:../Images/reactor_gr_2.gif]
[Graphics:../Images/reactor_gr_3.gif]

In Standard form, which is a little shorter, you would need the typeset window to make this practical.   

[Graphics:../Images/reactor_gr_4.gif]
 
[Graphics:../Images/reactor_gr_5.gif]

Finally it may be more easily read in Traditional form as shown here.  Note that this particular cell is inactive and will not be evaluated.  You can change this, if you really want to, by selecting the cell, going into the "preferences" under the Edit menu and under Cell Options, Evaluation Options, set Evaluatable to True. 

[Graphics:../Images/reactor_gr_6.gif]
[Graphics:../Images/reactor_gr_7.gif]

Back to start of calculations.

Note that you can convert any "cryptic" input expression by selecting the cell, going up to the cell menu and selecting "convert to traditional form".  This is "shift curly t" on the keypad.  

Converted by Mathematica      May 30, 2000