Gaussian-Quadratic

gaussian_quadric

Computer-generated drawing, photo print from microfilm
25.3 × 21.8 cm
IBM 7094, Stromberg-Carlson S-C 4020 microfilm recorder
Programmed in FORTRAN
Produced at Bell Telephone Laboratories, New Jersey
Shown at Tendencies 4, Computer and Visual Research

“ In general, completely random two-dimensional pictures are not very interesting. However the computer is also able to mix together randomness and order in mathematically specified proportions to achieve a desired effect. The intial attempts at such mixing used Gaussian randomness for the X-axis co-ordinates but introduced a specified and non-rendom mathematical function for genrating the Y-axis co-ordinates. Gaussian Quadratic is a particularly good example of this mixing approach. Ninety lines join together 100 points whose horizontal positions are Gaussian. The vertical positions increase quadratically, i.e. the first position has a vertical position from the bottom of the picture given by 1^2 +5 * 1, the second point 2^2 + 5 * 2 , the third point 3^2 + 5 * 3, etc. The maximum picture size is limited to 1024 units wide by 1024 units high, and thus the 30th point would be off the top of the picture (30^2 + 5 * 30 = 1050 ) . To prevent this from happening, the vertical positions at the top are reflected to the bottom of the picture and then continue to rise. the result is a line that starts at the bottom of the picture and randomly zigzags to the top in continually increasing steps; at the top the line is ‘ translated’ to the bottomto continue it’s rise. The standard derivation of the Gaussian density is 150. “

Michael A. Noll
Referred from Page 153 Cybernetics, Arts and Ideas

Created 1963 in Murray Hill (NJ), USA.
Artwork Type: drawing
Material: 

drawing, b/w, computer generated.
Ink on paper
Size: 19,5 × 13 cm (graphic), 27,8 × 21,8 cm (sheet)
FORTRAN on IBM 7090, printed with Stromberg-Carlson 4020 microfilm-plotter

Part of Collection: Sammlung Clarissa
gaussian_quadric

Computer-generated drawing, photo print from microfilm
25.3 × 21.8 cm
IBM 7094, Stromberg-Carlson S-C 4020 microfilm recorder
Programmed in FORTRAN
Produced at Bell Telephone Laboratories, New Jersey
Shown at Tendencies 4, Computer and Visual Research

02a_noll_wise_gaussian63
Noll_Fig66
Noll_Fig65
Noll_fig64
noll4

Gaussian Quadratic (1963) by A. Michael Noll.