An integrator which draws an absolute picture of the sum or integral is better termed an "integraph."
Such an instrument is an integraph, and the one I have to describe to you to-night is the outcome of that inquiry.
The superiority of the integraph over the integrator cannot be better pointed out than by a concrete example.
There is a brake on one of the roughed wheels to check or stop the motion of the integraph when required.
In graphical dynamics the applications of the integraph seem still more numerous.
The object of the integraph is to draw this new curve when the tracer of the instrument is guided along the y-curve.
Sometimes a combination of graphical work with an integraph will serve the purpose.
The instrument now is an integraph giving the value of a definite integral as function of a variable parameter.
I hope the above description of the integraph may have made its construction and method of working sufficiently clear.
It is something better than my title, for it is an integraph, and not an integrator.