# Casio FX-7400G Plus Calculator "cfx 9850gc" Questions

Question about Casio Office Equipment & Supplies

## The calculator wont recognise the blue funtion buttons (1-6)

...is a function to lock the function buttons from use? or Is my calculator broken? The model is a CASIO CFX-9850GC PLUS Clear the ram: 1. Press [MENU]2. Press [tan] (MEM)3. Select RESET4. [F1]

Question about Casio Office Equipment & Supplies

## How to use casio 9850GC PLUS to solve equations in polar form?

how to use casio 9850GC PLUS to solve equations in polar form? thanks Put the calculator in Equation solving mode. Select F3:Solver. Enter your equation; use X as unknow (no need to use Theta, the ...

Question about Casio Office Equipment & Supplies

## I have a Casio CFX-9850GC

...CFX-9850GC PLUS. How do I check the angle between 2 vectors, please? The angle between two vectors a and b is calculated as the inverse cosine of the inner product of a and b, divided by the product ...

Question about Casio Office Equipment & Supplies

## How do i change fractions into decimals? using a

...cfx-9850gc Hello, Just after you obtain a result in the form of a fraction, press the [F<->D] key to convert it to a decimal number. If you enter the ratio of two numbers as numerator / ...

Question about Casio Office Equipment & Supplies

## Logarithmic functions

CFX-9850GC PLUS? All calculators it's the same: log x base y = log x / log y log (x*y) = log x + log y log (x/y) = log x - log y the default base in all the calculators is 10 so instead of writing log

Question about Casio Office Equipment & Supplies

## The buttons of my casio cfx-9850GC plus ( buttons

cfx-9850GC plus ( buttons f1,f2,f3,f4,f5,f6) dont work. What can I do to solve my problem??? First of all check its warranty, if exists, concern the authorized dealer or representative. If not unscrew

Question about Casio Office Equipment & Supplies

## I need to find out how to graph fuctions and the

cfx 9850gc plus ASAP Hello, Let us start wih the derivatives. To obtain the values of derivatives at points on a graph, you must set Derivative to ON Press [AC/On] to trun calculator on. If you do not

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