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derivdegree

? derivdegree;

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derivdegree-diff

'diff (y+x, x, 1);

derivdegree (%, y, x);

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derivdegree-diff

'diff (y, x, 2) + 'di...

derivdegree (%, y, x);

Calculate

derivdegree-diff

'diff (y+x^2, x, 1);

derivdegree (%, y, x);

Calculate

derivdegree-diff

'diff (y, x, 2);

derivdegree (%, y, x);

Calculate

derivdegree-diff

'diff (y+x, x, 1);

derivdegree (%, y, x);

Calculate

derivdegree-diff

diff(y,x,2)+diff(y,x,...

derivdegree(%y,x);

Calculate

derivdegree-diff

'diff (y, x, 2) + 'di...

derivdegree (%, y, x);

Calculate

derivdegree-diff

diff(y,x,2)+diff(y,x,...

derivdegree(%y,x);

Calculate

derivdegree-diff

'diff (y, x, 2) + 'di...

derivdegree (%, y, x);

Calculate

derivdegree

Run Example
(%i1)'diff (y, x, 2);
                                       2
                                      d y
(%o1)                                 ---
                                        2
                                      dx
(%i2)  derivdegree (%, y, x);
(%o2)                                  0
(%i3) 
Run Example
'diff (y+x, x, 1);
                                  d
(%o1)                             -- (y + x)
                                  dx
(%i2)  derivdegree (%, y, x);
(%o2)                                  0
(%i3) 
Run Example
? derivdegree;

 -- Function: derivdegree (<expr>, <y>, <x>)
     Returns the highest degree of the derivative of the dependent
     variable <y> with respect to the independent variable <x> occuring
     in <expr>.

     Example:
          (%i1) 'diff (y, x, 2) + 'diff (y, z, 3) + 'diff (y, x) * x^2;
                                   3     2
                                  d y   d y    2 dy
          (%o1)                   --- + --- + x  --
                                    3     2      dx
                                  dz    dx
          (%i2) derivdegree (%, y, x);
          (%o2)                           2


(%o1)                                true
(%i2) 

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