Correct DDA Register Transfers for Trapezoidal Integration When Solving Nonlinear Equations of the Form ẏ= Ayn

This correspondence shows that when solving differential equations of the form ẏ = Σanyⁿ, DDA´s that perform trapezoidal integration for linear equations cannot be directly employed. Modified register transfers are developed for the representative example of ẏ = y², and results are presented for both accurate numerical solutions and curve generation on a graphic display.