## × Multiply

Two-argument form See also one-argument form Sign of

Multiplies the number(s) in the right-hand argument by the number(s) in the left- hand argument.

                 23.8×0.12            (Multiplies one number by another)
           2.856
                 12 8 39×9 81 2       (Multiplies each number in a vector by
           108 648 78                  the corresponding number in a vector of
                                       equal size)
                 12×89 91 ¯2 87       (Multiplies a scalar by each number in
           1068 1092 ¯24 1044          a vector)
                 TABLE „ 3 5 ½ ¼ 15
                 TABLE × 5            (Multiplies each number in a matrix
            5 10 15 20 25              by a scalar)
           30 35 40 45 50
           55 60 65 70 75
                TABLE×TABLE           (Multiplies each number in a matrix
             1   4   9  16  25         by the corresponding number in a matrix
            36  49  64  81 100         of equal size and dimensions)
           121 144 169 196 225
                 2 × 5 (2 2 ½¼4) (¼5) (Multiplies every element in the right
            10    2 4   2 4 6 8 10     argument by 2)
                  6 8
                 2  3 × 5 (2 2 ½¼4) (¼5)
           LENGTH ERROR               (Arguments must be the same length)
                 2 3×5(2 2½¼4)(¼5)
                 ^
                 (2 2½¼4) 10 (3½3)×5 (2 2 ½¼4) (¼3)
              5 10    10 20   3 6 9   (Corresponding elements multiplied)
             15 20    30 40

Topic: APLX Help : Help on APL language : APL Primitives : × Multiply

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