"c 8Pack*?8 @EACT $EACT1 f.؁ dl@Dāȁpt@LH @ ؁ @ D  $ p ======020502 =======vDifferential Calculations dDiTo perform differential calculations, first display the function analysis menu, and then input the values using the syntax below. T[OPTN][F4](CALC)[F2](d/dx)f(x)[,]a[,]tol[)](a:point for which you want to determine the derivative, tol:tolerance)d/dx(f(x),a)  ddxf(a) heThe differentiation for this type of calculation is defined as: @f'(a)liz=lim(f(a+Cx)f(a)Cx) f'In this definition, infinitesimal is replaced by a sufficiently small Cx, with the value in the neighborhood of f'(a) calculated as:tf'(a)氻f(a+Cx)f(a)Cx In order to provide the best precision possible, this unit employs central difference to perform differential calculations. Using Differential Calculation in a Graph Function Omitting the tolerance (tol) value when using the differential command inside of a graph function simplifies the calculation for drawing the graph. In such a case, precision is sacrificed for the sake of faster drawing. The tolerance value is specified, the graph is drawn with the same precision obtained when you normally perform a differential calculation. You can also omit input of the derivative point by using the following format for the differential graph: Y2=d/dx(Y1). In this case, the value of the X variable is used as the derivative point. Example \@RUNMAT[EXE]8Pack*?( @GUIDEKEYLOG(NOTE!%*#'%   4!$'' 0  0ty@RUNMAT,RUN2D1 Exa#In the function f(x), only X can be used as a variable in expressions. Other variables (A through Z excluding X, r, G)are treated as constants, and the value currently assigned to that variable is applied during the calculation. Inp#Input of the tolerance (tol) value and the closing parenthesis can be omitted. gIf you omit tolerance (tol) value, the calculator automatically uses a value for tol as 110. Spe#Specify tolerance (tol) value of 114 or less. An error (Time Out) occurs whenever no solution that satisfies the tolerance value can be obtained. In #In the Math input mode, the tolerance value is fixed at 110 and cannot be changed. Ina#Inaccurate results and errors can be caused by the following: discontinuous points in x values extreme changes in x values inclusion of the local maximum point and local minimum point in x values inclusion of the inflection point in x values inclusion of undifferentiable points in x values differential calculation results approaching zero