Transformations in multicomponent analysis frequently are better represented by second‐degree simultaneous equations than by the usual linear equations. For problems requiring repetitive evaluation of a set of equations in which the coefficient terms do not change, an analog computer can be used to obtain the results both rapidly and accurately. A computer is described which will evaluate three second‐degree equations, each of ten terms, as rapidly as an operator can set the input data on the dials, and with an accuracy better than 0.2 percent of the maximum value.