Casio FX-CG50 Scientific Calculator and Python Post: 303042000

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Top Forums Programming Casio FX-CG50 Scientific Calculator and Python Post 303042000 by Neo on Tuesday 10th of December 2019 11:18:13 PM

12-11-2019

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Here is a copy of the Amazon review I wrote for this Casio PRIZM FX-CG50:

Quote:

As an electrical engineer who works in software engineering, I have used a lot of calculators. The Casio PRIZM FX-CG50 does not have a nice feel in my hands at all. In fact, it feels rough and unrefined, bulky and cheap. I think the design is way too thick, perhaps because of the decision by Casio to run device this on four AAA batteries?

Anyway, I don't like the design in the least (for the money paid). The keyboard is hard to read, the contrast between the functions and the black background is poor, perhaps by design; so this device it is not for me. I also do not like how the FX-CG50 handles errors.

The documentation provided and the PDF online is very poor. Thank goodness for YouTube tutorials (but others, not Casio); but you would think that Casio could create their own very good tutorials; but no they cannot.

The macOS firmware upgrade software for the PRIZM FX-CG50 only works on High Sierra, which is two major releases back. All my main macs run Catalina (I own four Macs, including a 12 core Mac Pro from 2013, a Mac Mini and two MacBook Airs), so you cannot upgrade the PRIZM FX-CG50 software on three of those those four machines. The "good news" is that do happen to have an obsolete MacBook Air (very old MBA) which cannot upgrade past High Sierra, so I had to use that obsolete MBA from my closet to upgrade the firmware! Why Casio only supports High Sierra and not Mojave or Catalina is a total mystery to me! I guess Casio simply does not care about firmware upgrade software for macOS.

If I paid $25 bucks for this, I might expect less; but for the money, I realize I should not have bought this. The Casio PRIZM FX-CG50 is not recommended at all. Sorry to be truthful and honest.

PS: The way the Casio PRIZM FX-CG50 runs Python is not impressive at all.

Last edited by hicksd8; 12-11-2019 at 09:14 AM..

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redhat-upgrade-tool-cli

REDHAT-UPGRADE-TOOL(8)					  redhat-upgrade-tool User Manual				    REDHAT-UPGRADE-TOOL(8)

NAME

       redhat-upgrade-tool - Red Hat Upgrade tool

SYNOPSIS

       redhat-upgrade-tool [OPTIONS] SOURCE

DESCRIPTION

       redhat-upgrade-tool is the Red Hat Upgrade tool.

       The redhat-upgrade-tool client runs on the system to be upgraded. It determines what packages are needed for upgrade and gathers them from
       the source(s) given. It also fetches and sets up the boot images needed to run the upgrade and sets up the system to perform the upgrade at
       next boot.

       The actual upgrade takes place when the system is rebooted, using the boot images set up by redhat-upgrade-tool. The upgrade initrd starts
       the existing system (mostly) as normal, lets it mount all the local filesystems, then starts the upgrade.

       When the upgrade finishes, it reboots the system into the newly-upgraded OS.

OPTIONS

   Optional arguments
       -h, --help
	   Show a help message and exit.

       -v, --verbose
	   Print more info.

       -d, --debug
	   Print lots of debugging info.

       --debuglog DEBUGLOG
	   Write debugging output to the given file. Defaults to /var/log/redhat-upgrade-tool.log.

       --reboot
	   Automatically reboot to start the upgrade when ready.

   SOURCE
       These options tell redhat-upgrade-tool where to look for the packages and boot images needed to run the upgrade. At least one of these
       options is required.

       --device [DEV]
	   Device or mountpoint of mounted install media. If DEV is omitted, redhat-upgrade-tool will scan all currently-mounted removable devices
	   (USB disks, optical media, etc.)

       --iso ISO
	   Installation image file.

       --network VERSION
	   Online repos matching VERSION (a number or "rawhide")

       Multiple sources may be used, if desired.

   Additional options for --network
       --enablerepo REPOID
	   Enable one or more repos (wildcards allowed).

       --disablerepo REPOID
	   Disable one or more repos (wildcards allowed).

       --addrepo REPOID=[@]URL
	   Add the repo at URL. Prefix URL with @ to indicate that the URL is a mirrorlist.

       --instrepo REPOID
	   Get upgrader boot images from the repo named REPOID. The repo must contain a valid .treeinfo file which points to the location of
	   usable kernel and upgrade images.

   Cleanup commands
       --resetbootloader
	   Remove any modifications made to bootloader configuration.

       --clean
	   Clean up everything written by redhat-upgrade-tool.

EXAMPLES

       redhat-upgrade-tool --network 7.0 --instrepo <repo URL>

       Upgrade to RHEL 7.0 by downloading all needed packages and data from the specified repository.

       redhat-upgrade-tool --device --network 7.0

       Upgrade to RHEL 7.0 using install media mounted somewhere on the system, fetching updates from the network if needed.

EXIT STATUS

       0
	   Success.

       1
	   Cancelled by user, failure writing files to disk, or other unknown error

       2
	   Failed to download/copy files from the given SOURCE

       3
	   RPM upgrade transaction test failed

BUGS

       The --iso image must be on a filesystem listed in /etc/fstab.

AUTHORS

       Will Woods <wwoods@redhat.com>

redhat-upgrade-tool						    11/08/2013						    REDHAT-UPGRADE-TOOL(8)