A Displaying Comment Text on the Value Assignment Screen

You can use the following syntax to add comment text to an expression you input with CALC: "comment text" : {calculation expression}. The comment text will appear in the top line of the value assignment screen in place of the expression.

Example: To use CALC and input "AREA": S = A × B ÷ 2, assign the values A = 7, B = 8, and then perform the calculation

B1S(;-LOCK)!(")i(A)/(R)c(E) i(A)!(")1!(:)S1(S)S~(=)S0(A)*S'(B)/2

s

7E8E E

SOLVE

SOLVE uses approximation based on Newton’s Law to solve equations. SOLVE can be used only in the COMP Mode (N1).

k Expressions Supported by SOLVE

SOLVE supports input of equations of the following formatsExamples: Y = X + 5, X = sin(M), X + 3 = B + C, XY + C (Treated as XY + C = 0)

Important!

The following is not supported by SOLVE equations.-Input of integration, differential, Σ(, Pol( and Rec( functions-Multi-statement input

SOLVE does not support input of complex number coefficients or display of complex number solutions.

k Using SOLVE

Inputting an equation and pressing the . key displays a “value assignment screen”, which you can use to assign values to each variable. After assigning values to the variables, move the highlighting to the variable you want to solve for and then press E to solve.

A Using SOLVE to Solve an EquationExample: To solve the equation y = ax2 + b for x, when y = 0, a = 1, b = –2B S.(Y)S~(=)S0(A)S0(X)x+S'(B)

E-92