1. An integrated optical row-column vector multiplier comprising: a first optical waveguide defined by a linear path of photoconductive material in a supporting substrate; a second optical waveguide defined by a linear path of electrooptic material in said supporting substrate and in spaced parallel disposition relative to said first optical waveguide; a first electrode comprised of electrically conductive material supported on said substrate between said first and second optical waveguides; second and third electrodes comprised of electrically conductive material supported on said substrate contiguous to said first and second optical waveguides and opposite said first electrode; a constant amplitude d.c. electrical source connected to said second and third electrodes; a first coherent source of light signal intensity modulated in accordance with a column vector function and propagated along said first optical waveguide; a second coherent source of light signals intensity modulated in accordance with a row vector function and propagated along said second optical waveguide; a polarization analyzer positioned to intercept the output light signals of said second optical waveguide; and an integrating storage detector responsive to said output light signals for generating commensurate electrical signals representative of the multiplication of said column vector function and said row vector function.