20 Most Recent Casio Model Dl-250la Heavy Duty Black/red Printing Calulator W/11 Rolls Paper Questions & Answers


Simplifications of logarithmic expressions are based on the properties of logarithms
log(1)=0
log(a/b)=log(a)-log(b)
log(a^n)=n*log(a)
log_b(x)=log(x)/log(b)=ln(x)/ln(b)

As to exponentials you have
e^(0)=1
e^(-a)=1/(e^a)
(e^a)*(e^b)=e^(a+b)
(e^a)^n=e^(na)
That is the gist of it.
But I do not think that your calculator is able to handle any scientific calculations.

Casio Model... | Answered on Sep 28, 2013


I dont believe there is a grand total on that machine.

http://support.casio.com/en/manual/manualfile.php?cid=004005001

Casio Office... | Answered on Dec 06, 2019


https://www.calculatorsoup.com/calculators/conversions/convert-decimal-degrees-to-degrees-minutes-seconds.php

Casio Office... | Answered on Oct 31, 2019


Parts not available, Try buying a used one on ebay

Casio Office... | Answered on Oct 28, 2019


Seems to be a common problem on this otherwise great calculator that helped me through both high school and university. I've had mine for nearly 20 years and this problem showed up a few years ago. But I remember classmates reported the same problem when it was almost new.

If replacing batteries isn't helping, the problem is most likely caused by oxidation on the springs connecting the battery holder to the main PCB. The solution is as follows:

1. Remove the metal back cover (2 screws)
2. Remove the plastic back lid by removing the black screws (leave the batteries mounted) and CAREFULLY slide the back lid to the lower end (where the EXE button is located). Do not lift while sliding until the lid easily comes off.
3. On the back side of the plastic lid, very carefully bend the the two metal connectors ~1 mm on both batteryholders to increase their tension.
4. Clean the connecting pads on the PCB and the metal springs with de-oxidizer solvent.
5. Re-assemble and your 4500P calculator should be good as new.

Casio Office... | Answered on Sep 12, 2019


Hello,
Here is a link to Casio New Zealand. Enter the model number for your calculator (with and wihout the hyphen, I don't remember which) and download a bilingual manual. The quality of the copy is to say the least ... Well, why not let you discover it for yourself.

Bye.

Casio Office... | Answered on Sep 03, 2019


Google (casio)(KL 400)(manual) without parens OR contact Casio directly with your request.

Casio Office... | Answered on Aug 25, 2019

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