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DiffAlgElement + DiffAlgElement -- addition

Synopsis

Operator: +
Usage:

w + h
Inputs:
- w, an instance of the type DiffAlgElement, a differential form or vector field
- h, an instance of the type DiffAlgElement, a differential form or vector field
Outputs:
- an instance of the type DiffAlgElement, the addition of w and h

Description

i1 : h = radial 2

o1 = x ax  + x ax  + x ax
      0  0    1  1    2  2

o1 : DiffAlgField

i2 : w = random newField(3,1,"a")

o2 = (2x  + 2x  + 2x  + 2x )ax  + (- 2x  - 6x  - x  + 5x )ax  + (- 3x  -
        0     1     2     3   0        0     1    2     3   1        0  
     ------------------------------------------------------------------------
     x )ax  + (- x  + 5x  - 3x )ax
      2   2       0     2     3   3

o2 : DiffAlgField

i3 : w + h

o3 = (3x  + 2x  + 2x  + 2x )ax  + (- 2x  - 5x  - x  + 5x )ax  - 3x ax  + (-
        0     1     2     3   0        0     1    2     3   1     0  2     
     ------------------------------------------------------------------------
     x  + 5x  - 3x )ax
      0     2     3   3

o3 : DiffAlgField

Ways to use this method:

DiffAlgElement + DiffAlgElement -- addition