Casio FX-CG10 Software User Guide - Page 212
Power Regression Graph, Sinusoidal Regression Graph
View all Casio FX-CG10 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 212 highlights
k Power Regression Graph Power regression expresses y as a proportion of the power of x. The standard power regression formula is y = a × xb, so if we take the logarithm of both sides we get In y = In a + b × In x. Next, if we say X = In x, Y = In y, and A = In a, the formula corresponds to linear regression formula Y = A + bX. 1(CALC)6(g)4(Power) 6(DRAW) The following is the power regression model formula. y = a·xb a regression coefficient b regression power k Sinusoidal Regression Graph Sinusoidal regression is best applied for cyclical data. The following is the sinusoidal regression model formula. y = a·sin(bx + c) + d 1(CALC)6(g)5(Sin) 6(DRAW) Drawing a sine regression graph causes the angle unit setting of the calculator to automatically change to Rad (radians). The angle unit does not change when you perform a sine regression calculation without drawing a graph. • Certain types of data may take a long time to calculate. This does not indicate malfunction. 6-19