OK, changed batteries both at the same time, I know, didn't see that part. nor do I have an instruction manual. When I turn it on, all I get is a screen with list 1, list 2, list and 4, then 1,2,3,4,5 in the viertical column, In number 1 is 2.2266, at the very bottom right is a row of 2's. I can't get it to do anything but boot to this screen. Your help would be appreciated. Paul Shea
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Hello, Th CFX-9850GB Plus is programmed to perform 10 types of regressions, namely LinearReg: Linear y=ax+b Med-Med also linear y=ax+b QuadReg :Quadratic y= ax^2+bx+c Cubic: y=ax^3+bx^2+cx+d Quartic: y=ax^4+bx^3+cx^2+dx+e LogReg, logarithmic: y=a+b*ln(x) ExpReg, exponential y=a*e^(bx) PowerReg, power: y= ax^b SinReg, sinusoidal: y=a*sin(bx+c) +d LogisticReg, logistic; y= c/(1+a*e^(-bx))
There may be more regression models appropriate for more advanced (specialized) statistics but the ones in the list are all the CFX-9850GB plus offers. However, since the calculator knows a programming language, you may want to implement a particular model.
Hello, You perform all calculations in complex mode. When you need to convert to angle amplitude, in the [RUN] screen press [OPTN][F3:CMPLX] To obtain the angle press [Arg] ( complex number) [EXE] To obtain the magnitude, amplitude press [Abs] (complex number) [EXE]. Since the [ANS] memory keeps only the last value calculated, you may have to store your result (the complex number) in a variable.
1+ 1 i [white right arrow under tan key to store] [ALPHA] H Display shows 1+1i. Then [Abs] [ALPHA] H [EXE] gives 1.414213562 [Arg] [ALPHA] H [EXE] gives 45