Computer for solving unknown parameters of geometrical figures

Claim 2

In a calculating device for determining an unknown dimension of a geometrical figure when necessary and sufficient known dimensions are available to enable calculation of said unknown dimension, the combination of means defining a geometrical design having parameters corresponding to parameters of said figure, a plurality of keys selectively operative for providing input signals representing said known dimensions and selected parameters of said design, programmed means responsive to said input signals for providing an output signal representing said unknown dimension, and display means responsive to said output signal for displaying said unknown dimension.

Claim 3

In the combination according to claim 1, said keys include parameter identifying keys associated with selected parameters of said design and also include dimension identifying keys, at least certain of said parameter identifying keys being located in proximity to their associated parameters.

Claim 4

In the combination according to claim 2, said means defining said design including a keyboard, the last named keys being arranged on said keyboard according to the pattern of said design.

Claim 5

In the combination according to claim 1, said design comprising a triangle having separate parameter identifying keys associated with the angles and sides of said triangle respectively.

Claim 6

In the combination according to claim 4, said triangle having a horizontal base, said design including a vertical line representing the altitude of said triangle, and one of said parameter identifying keys being associated with said vertical line, said angles, sides and altitude comprising selected parameters of said triangle and each of said selected parameters having its associated parameter identifying key proximate thereto.

Claim 7

In the combination according to claim 1, said keys including parameter identifying keys associated with selected parameters of said design and also including dimension entering keys, said programmed means having means responsive to a succession of paired operations of said keys comprising operation of a selected parameter identifying key followed by selected operation of said dimension entering keys for providing a corresponding succession of information signals representing selected parameters and dimensions thereof, said display means comprising means responsive to a predetermined number of said information signals and the selective operation of a parameter identifying key for displaying the dimension of the parameter associated with the latter key.

Claim 8

In the combination according to claim 6, said design comprising a triangle having a separate parameter identifying key associated and in close proximity with each angle and side of said triangle.

Claim 9

In the combination according to claim 1, said keys including parameter identifying keys associated with selected parameters of said design and also including dimension entering keys, said programmed means having means responsive to a succession of paired operations of said keys comprising operation of a selected parameter identifying key associated with selected operation of said dimension entering keys for providing a corresponding succession of information signals representing selected parameters and dimensions thereof, said display means comprising means responsive to a predetermined number of said information signals and the operation of selected parameter identifyng keys for successively displaying the dimensions of the parameters associated with the latter keys.

Claim 10

In the combination according to claim 8, at least certain of said parameter identifying keys being arranged according to the pattern of said design.

Claim 11

In the combination according to claim 9, said design comprising a triangle having a separate parameter identifying key associated with each angle and side of said triangle.