Thursday 14 February 2019

Sum Of A Geometric Series On A Casio Classwiz fx-991EX

 

 

🔶 Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at how to find the sum of geometric series using both the sum feature on the Casio Classwiz fx-991EX and the sum formula. You can use the fx-991EX and the equation for the nth term with the sum feature to find the sum of the series to a particular number of terms. You can also check use of the sum formula using the same method.



from The Calculator Guide : Mathematics Help – Casio Skills – Education Technology http://bit.ly/2GqLoay
via IFTTT

Tuesday 12 February 2019

Three Ways To Find The Sum Of An Arithmetic Series On Casio Classwiz fx-991EX

 

 

🔶 Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at three different approaches to finding the sum of an arithmetic series to a given number of terms. The first two approaches use a formula for the nth term of the series in combination with the sum feature on the Classwiz. The last approach uses the general formula for the sum, using the calculator to do the working out.



from The Calculator Guide : Mathematics Help – Casio Skills – Education Technology http://bit.ly/2tipVIb
via IFTTT