imat_shp/plus

Purpose

Add shape coefficients (s1+s2).

Syntax

s1+s2
s+x
x+s

Description

The following addition operations are possible with imat_shp objects:

• Adding two imat_shp objects causes their shape coordinates to be added. The shape node numbers must agree between the shapes being added. If one of the operands is a single shape (1x1), then its coefficients will be added to all elements in the other operand. If both operands are shape arrays, they must have the same dimensions. The data attributes of the result of an addition operation will be taken from the left operand. A warning will be issued if the ordinate attributes of the two operands are not consistent, but the operation is allowed.

• Adding a numeric array or scalar to an imat_shp causes the numeric values to be added to the shape coefficient values of the imat_shp.

Examples

>> s=imat_shp(3,'shape',reshape(1:18,6,3))

s =
3x1 IMAT Shape with the following attributes:
Row Frequency           Damping             NumberNodes
--- ------------------- ------------------- -------------------
1   1                   0.01                2
2   1                   0.01                2
3   1                   0.01                2

>> s.shape

ans =
     1     7    13
     2     8    14
     3     9    15
     4    10    16
     5    11    17
     6    12    18

>> t=s+s; t.shape

ans =
     2    14    26
     4    16    28
     6    18    30
     8    20    32
    10    22    34
    12    24    36

>> t=t+t(1); t.shape

ans =
     4    16    28
     8    20    32
    12    24    36
    16    28    40
    20    32    44
    24    36    48

>> t=t+1; t.shape

ans =
     5    17    29
     9    21    33
    13    25    37
    17    29    41
    21    33    45
    25    37    49

>>

See Also

imat_shp/minus