| Sometimes a combination of graphical work with an integraph will serve the purpose. |
| Integraph, mathematical instrument for plotting the integral of a graphically defined function. |
| 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. |
| In graphical dynamics the applications of the integraph seem still more numerous. |
| It is something better than my title, for it is an integraph, and not an integrator. |
