vec_add_mult_vector()

VEC_$ADD_MULT_VECTOR              Domain/OS               VEC_$ADD_MULT_VECTOR


NAME
     vec_$add_mult_vector - add two single-precision vectors, multiply by a
     third

SYNOPSIS (C)
     #include <apollo/base.h>
     #include <apollo/vec.h>

     void vec_$add_mult_vector(
          float *start_vec,
          float *add_vec,
          float *mult_vec,
          long int &length,
          float *result_vec)

SYNOPSIS (Pascal)
     %include '/sys/ins/base.ins.pas';
     %include '/sys/ins/vec.ins.pas';

     procedure vec_$add_mult_vector(
          in start_vec: univ vec_$real_vector;
          in add_vec: univ vec_$real_vector;
          in mult_vec: univ vec_$real_vector;
          in length: integer32;
          out result_vec: univ vec_$real_vector);

SYNOPSIS (FORTRAN)
     %include '/sys/ins/base.ins.ftn'
     %include '/sys/ins/vec.ins.ftn'

           parameter (nvec = 10)

           real start_vec(nvec), result_vec(nvec), add_vec(nvec), mult_vec(nvec)
           integer*4 length

           call vec_$add_mult_vector(start_vec, add_vec, mult_vec, length, result_vec)

DESCRIPTION
     Vec_$add_mult_vector adds the vectors start_vec and add_vec, multiplies
     the result by mult_vec, and stores the final result in result_vec.  The
     calculation performed is as follows:

     For each integer I such that 1 <= I <= length,
     result_vec(I) = (start_vec(I) + add_vec(I)) x mult_vec(I)


     Note that the multiplication done by this call is point-wise.  This call
     does not perform matrix multiplication, since the product of two vectors
     is another vector of the same magnitude.

     start_vec
          An addend vector.

     add_vec
          An addend vector.

     mult_vec
          A multiplicand vector.

     length
          The number of elements to be operated on;  normally the same as the
          number of elements in the vectors.

     result_vec
          The vector created by adding start_vec to add_vec and multiplying
          the result by mult_vec.

NOTES
     When vec_$add_mult_vector is used to operate on matrixes in C and Pascal,
     start_vec, add_vec, mult_vec, and result_vec are row vectors; in FORTRAN,
     they are column vectors.

     As in all the vec_$ calls, the result array must not overlap any of the
     input arrays; the result array may be identical to an input, but must not
     contain any subset of it.   Because of pipelining, using overlapping
     input and output arrays may cause incorrect results.


SEE ALSO
     vec_$sub_mult_vector, vec_$mult_add_vector, vec_$mult_sub_vector,
     vec_$mult_rsub_vector, vec_$add_add_vector, vec_$sub_add_vector,
     vec_$mult_mult_vector, vec_$add_mult_vector_i, vec_$dadd_mult_vector,
     vec_$dadd_mult_vector_i, vec_$iadd_mult_vector, vec_$iadd_mult_vector_i,
     vec_$iadd_mult_vector16, vec_$iadd_mult_vector16_i.
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