20 Most Recent
Casio FX-270W Calculator Questions & Answers
How to do sigma notation?
The calculator cannot add the terms of a sequence. You need a graphing calculator that has that feature, or a calculator with a CAS (Computer Algebra System).
Infinity
The calculator does not have a CAS, no need to bother about infinity. If you have to do some integral, it a must be a definite one, ie with fixed lower and upper bound.
Help
Hi,
What is the problem?
How do you enter the inverse of cot(-4)
well there is no cot function on this calculator so you have to use the identity. Cot is 1/tan so the inverse cot is 1/inverse tan which is on this calculator so = 1/arctan(-4)
No manual
Hi,
You can find the manual here:
Hope this helps!!!
Inverse Functions on Casio fx-270W PLUS don't seem to work
because cotangent, cosecant, and secant are all inverse trig functions, just type in 1 / |shift| trig function and the number if you are finding the angles. It might not be a dedicated button, but its an extra push, and it will give you the same result. *note that I put the shift press only because that is how you get the inverse tan to get an angle from a tan ratio.*
How do i do prime numbers on the NEWYES NY-991MS calculator and CTIFREE fx-991ES PLUS calculator?
The NEWYES NY-991MS and CTIFREE fx-991ES PLUS calculators do not have a dedicated "FACT" button like the Casio FX-83GTX. However, you can still find prime numbers on these calculators.To find prime numbers:NEWYES NY-991MS:Press the "MODE" button.Choose "PRIME" from the list of options.Enter the desired number and press "=" to check if it's prime.CTIFREE fx-991ES PLUS:Press the "MODE" button.Select "TABLE" or "TABLESET."Input a starting point and an ending point, then observe the table for prime numbers.Although the techniques may vary from those used on the Casio FX-83GTX, they prove to be effective for prime number calculations on the designated calculators.
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