Hi, since some time I am the lucky owner of a fx-9860g and I am relatively happy with it. Though, I have two questions and I hope that you can help me answering them:
1) I have installed Physium. Is there any convenient to use physical constants stored in there in the RUN-MATH mode? I know that you can store some in variables, but I am thinking about something similar to what my fx-991ES has. There I have to press SHIFT 7 in the MATH mode and then can choose numbers from 1-40 to insert a physical constant. What I find good at it is that the actual symbols appear there, for example ε0. This way, I do not mix them up.
2) When I am in the TABLE mode having it set to Angle: RAD and insert the following function: 6.28*sin (100 * π * X), it calculates 0 for all Y values which is not right IMO. When I go to the GRAPH function after and directly press DRAW, then Condition ERROR appears. I am using version 1.05. Does anyone know what I am doing wrong there?
Thanks for your help, Martin
Fx-9860g - Physium And Problem With Table Function
Started by
Guest_pirast_*
, May 16 2009 10:41 AM
3 replies to this topic
#2
mintsmike
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fx-5500L, fx-991ES,fx-9860SD (with GII SD OS), Casio Classpad 330, MS Windows Calc, Ubuntu Calc, a Hammer and my Brain!
Posted 16 May 2009 - 01:18 PM
Hello pirast (or Martin?) and welcome to the UCF! 
I have some answers to your questions:
1. Im afraid that the fx-9860s do not have that capability. I think casio restrict it to students using simple scientific calculators.
2. For a bit of math. You have to remember those trig values. sin(pi) = 0. Which, in degrees means sin(180) and the sine graph is cyclic so it has roots at all multiples of 180 or pi. So by multiplying 100X by pi, you are not changing those roots, on your calculator do: sin(pi), sin(2*pi), sin(3*pi) and so on. You will see that it is always 0. Then you multiply the result by 6.28 (im guessing 2*pi), which is effectively 6.28 * 0, which will always return 0. OK, moving on. You cannot graph a table function. Table functions use a different format. To resolve this error, you should upgrade to OS v2. But this is not necessary if you are OK with typing out the formula again for different modes,
Regards,
mintsmike with a working OSv2
I have some answers to your questions:
1. Im afraid that the fx-9860s do not have that capability. I think casio restrict it to students using simple scientific calculators.
2. For a bit of math. You have to remember those trig values. sin(pi) = 0. Which, in degrees means sin(180) and the sine graph is cyclic so it has roots at all multiples of 180 or pi. So by multiplying 100X by pi, you are not changing those roots, on your calculator do: sin(pi), sin(2*pi), sin(3*pi) and so on. You will see that it is always 0. Then you multiply the result by 6.28 (im guessing 2*pi), which is effectively 6.28 * 0, which will always return 0. OK, moving on. You cannot graph a table function. Table functions use a different format. To resolve this error, you should upgrade to OS v2. But this is not necessary if you are OK with typing out the formula again for different modes,
Regards,
mintsmike with a working OSv2
#3
Guest_pirast_*
Guest_pirast_*
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Posted 16 May 2009 - 03:22 PM
Hi thanks for your fast reply. Regarding 1: Is it possible to somehow contact Casio in order to place a feature request?
Regarding 2 you were completly right. I changed the steps value accordingly and now it works fine. I also updated my OS to v2 which results in my table function problem to be fixed.
Thanks again! Martin
Regarding 2 you were completly right. I changed the steps value accordingly and now it works fine. I also updated my OS to v2 which results in my table function problem to be fixed.
Thanks again! Martin
#4
mintsmike
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fx-5500L, fx-991ES,fx-9860SD (with GII SD OS), Casio Classpad 330, MS Windows Calc, Ubuntu Calc, a Hammer and my Brain!
Posted 16 May 2009 - 03:27 PM
Go here.
If you email them, then they should be able to tell you which department to send your query to. You never know, you might get your addition put in the next os release!
Regards
If you email them, then they should be able to tell you which department to send your query to. You never know, you might get your addition put in the next os release!
Regards
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