User Guide
Page 24
EQN F F 1 (fx-95MS) F F F 1 (Other Models) k Quadratic and Cubic Equations Quadratic Equation: ax2 + bx + c = 0 Cubic Equation: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen. Deg r ee? ...2 3 Use this screen to three unknowns. view other elements. Arrow indicates direction you want to 0. Element value 22 Coefficient name a? Use the F key to enter the EQN Mode when you should scroll to solve an equation. k Engineering Notation Calculations...
EQN F F 1 (fx-95MS) F F F 1 (Other Models) k Quadratic and Cubic Equations Quadratic Equation: ax2 + bx + c = 0 Cubic Equation: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen. Deg r ee? ...2 3 Use this screen to three unknowns. view other elements. Arrow indicates direction you want to 0. Element value 22 Coefficient name a? Use the F key to enter the EQN Mode when you should scroll to solve an equation. k Engineering Notation Calculations...
User Guide
Page 25
... the t key at this point returns to the coefficient input screen. • Certain coefficients can use the [ and ] keys to move between coefficients on the display. Calculation starts and one of the solutions for coefficients. Solution Press the ] key to take more time. • Example 1: To solve the equation x3 - 2x2 - x + 2 = 0 (x = 2, -1,.... This is a complex number, the real part of a solution. 23 • Any time until you input a value for the final coefficient (c for a quadratic equation, d for a cubic equation), you can cause calculation to view other 0.
... the t key at this point returns to the coefficient input screen. • Certain coefficients can use the [ and ] keys to move between coefficients on the display. Calculation starts and one of the solutions for coefficients. Solution Press the ] key to take more time. • Example 1: To solve the equation x3 - 2x2 - x + 2 = 0 (x = 2, -1,.... This is a complex number, the real part of a solution. 23 • Any time until you input a value for the final coefficient (c for a quadratic equation, d for a cubic equation), you can cause calculation to view other 0.
User Guide
Page 30
... regression r 2 (Inv) : Inverse regression r 3 (Quad) : Quadratic regression 28 Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad) Regression Calculations REG Use the F key to enter the REG Mode when you just input. REG F 3 (fx-95MS) F F 2 (Other Models) • Entering the REG Mode displays screens like the ones shown below...
... regression r 2 (Inv) : Inverse regression r 3 (Quad) : Quadratic regression 28 Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad) Regression Calculations REG Use the F key to enter the REG Mode when you just input. REG F 3 (fx-95MS) F F 2 (Other Models) • Entering the REG Mode displays screens like the ones shown below...
User Guide
Page 31
P S • The values produced by a regression calculation depend on the values input, and results can be recalled using...931;y2 Σy Σxy o xσn xσn-1 p yσn yσn-1 Regression coefficient A Regression coefficient B A U 1 A U 2 A U 3 A U r 1 A U r 2 A U r 3 A X 1 A X 2 A X 3 A X r 1 A X r 2 A X r 3 A X r r 1 A X r r 2 Regression calculation other than quadratic regression Correlation coefficient r m n A X r r 3 A X r r r 1 A X r r r 2 • The following table shows the key operations you should use to clear statistical memory. • Input data using the key...
P S • The values produced by a regression calculation depend on the values input, and results can be recalled using...931;y2 Σy Σxy o xσn xσn-1 p yσn yσn-1 Regression coefficient A Regression coefficient B A U 1 A U 2 A U 3 A U r 1 A U r 2 A U r 3 A X 1 A X 2 A X 3 A X r 1 A X r 2 A X r 3 A X r r 1 A X r r 2 Regression calculation other than quadratic regression Correlation coefficient r m n A X r r 3 A X r r r 1 A X r r r 2 • The following table shows the key operations you should use to clear statistical memory. • Input data using the key...
User Guide
Page 33
... y ҃ In A + Bx) Power Regression y ҃ A ؒ xB (In y ҃ In A + B In x) Inverse Regression y ҃ A ѿ B ؒ 1/x u Quadratic Regression • The regression formula for quadratic regression is: y = A + Bx + Cx2. • Example: xi yi Perform quadratic regression to estimate the 74 38.0 values for n (estimated value of y) for 103 46.4 xi = 16 and m (estimated...
... y ҃ In A + Bx) Power Regression y ҃ A ؒ xB (In y ҃ In A + B In x) Inverse Regression y ҃ A ѿ B ؒ 1/x u Quadratic Regression • The regression formula for quadratic regression is: y = A + Bx + Cx2. • Example: xi yi Perform quadratic regression to estimate the 74 38.0 values for n (estimated value of y) for 103 46.4 xi = 16 and m (estimated...