CAS command question

01042017, 03:51 PM
Post: #17




RE: CAS command question
(01042017 12:56 PM)compsystems Wrote: Hello Mr. Parisse Parisse might have more to add, but the expression[index] format is just a "list" starting with an operator followed by the arguments. For example: eq1:=t^2+2*tcos(t)/sin(2*t); eq1[1]; > '+' (operator) eq1[2]; > 't^2' (argument 1) eq1[3]; > '2*t' (argument 2) eq1[4]; > 'cos(t)/sin(2*t)' (argument 3) Each argument can also be an expression that is stored similarly. eq1[2,1]; > '^' (seems the Prime doesn't display this; but copy it to the command line and you see an exponent) eq1[2,2]; > 't' eq1[2,3]; > 2 Graph 3D  QPI  SolveSys 

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