Problems in solving third degree inequalities and exponential equations.

03132020, 10:39 AM
(This post was last modified: 03132020 02:07 PM by Jan 11.)
Post: #1




Problems in solving third degree inequalities and exponential equations.
Good day,
I would like to inform you that the latest firmware 2.1.14425 (2020 01 16) contains errors in solving third degree mathematical inequalities. It looks like this: 1. some inequalities are resolved very well and quickly (e.g. x ^ 23> x ^ 3x) 2. some inequalities are solved for a very long time (e.g. x ^ 22> x ^ 3x ^ 23x6) 3. some cause disconnection of the calculator (e.g. x ^ 23x2> x ^ 3) I decided to check how the abovementioned inequalities are solved by the virtual calculator. He solves them very well, quickly and all.. I have an HP PRIME G1 calculator. And one more thing. This applies to providing solutions to exponential equations. Solutions are given in complicated notation. I will not describe it exactly, see it in the attached screenshot. But here we have at least a system order. My calculator and virtual calculator give the same solutions. I think this is a serious matter, it concerns elementary mathematical functions and should be solved as soon as possible. 

03132020, 12:13 PM
Post: #2




RE: Problems in solving third degree inequalities and exponential equations.
I apologize for the error in the equations (points 2 and 3). I have a problem with the letter x on the keyboard. It has to be like this:
2. x ^ 22> x ^ 3x ^ 23x6 3.x ^ 23x2> x ^ 3 

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