HP Business BASIC/XL Reference Manual - HP 3000 MPE/iX Computer Systems - Edition 1 (32715-90001)

4- 78
(3b) MAT num_array1 = ( num_expr ) op num_array2
(4) MAT num_array1 = num_array2 op num_array3
{CON}
(5) MAT num_array1 = {ZER} [( dims )]
{IDN}
(6) MAT num_array1 = s_or_a_function ( num_array2 )
(7) MAT num_array1 = array_function ( num_array2 )
(8) MAT num_array1 = MUL ( num_array2, num_array3 )
Parameters
op +, -, *, /, <, <=, =,>=, <>, or #
num_array1 In equation (4), num_array1 must have the same number
of dimensions as num_array2 and num_array3 . It must
have at least as many elements as each of num_array2
and num_array3 .
num_array3 In equation (4), num_array3 must have the same number
of dimensions as num_array2 . Each dimension of
num_array3 must have the same number of elements as
the corresponding dimension of num_array2 . However,
corresponding dimensions of num_array3 and num_array2
can have different bounds (for example, num_array2
can be declared "DIM A(1:2,1:4)" and num_array3 can
be declared "DIM B(2:3,2:5)").
In equation (8), num_array2 and num_array3 can both
be matrices, or one can be a matrix and one can be a
vector. The dimensions of num_array2 and num_array3
are subject to the restrictions in Table 4-6.
CON Sets each element of array to one.
ZER Sets each element of array to zero.
IDN Makes array an identity matrix. If dims is
specified, it must specify a square matrix. If dims
is not specified, array must be a square matrix.
dims If specified, the statement redimensions num_array1
before assigning values to its elements.
s_or_a_function A scalar or array function; one of the following:
ABS ACS ASN ATN CEIL LGT
DECIMAL EXP FRACT INT INTEGER LOG
REAL SDECIMAL SGN SIN SINTEGER SQR
SREAL TAN TRUNC COS
See chapter 5 for more information about these
functions.
array_function See chapter 5 and Table 4-6 for more information
about these functions.
CSUM Stores column sums of matrix in
vector.
RSUM Stores row sums of matrix in
vector.
TRN Transposes rows and columns of