Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at supporting a method to find a cubic equation with unknown coefficients and known complex roots. By setting up an equation which involves a quadratic and using support from the calculator we are able to find the quadratic that gives the complex roots. Following that polynomial multiplication can get us back to the original cubic equation. We can then use the calculator again to verify our result.

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Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – A combination of calculator and non calculator methods are used in this question to find the complex roots of a function of z. This video also demonstrates the grid method for completing polynomial division which many find a lot more straight forward. It also highlights the benefits of using the fx-991EX to not only find, but verify your answers.

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Aᴍᴀᴢᴏɴ Sʜᴏᴘ ➜ https://amzn.to/2AdzGuf
Eɴʀᴏʟ Aᴛ Cᴀʟᴄᴜʟᴀᴛᴏʀ Sᴄʜᴏᴏʟ ➜ http://snip.ly/ukh7ih

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You can use the Classwiz complex mode to input and work with a complex number. This video shows you how to change a complex number on a Classwiz calculator between modulus and argument form and Cartesian a+bi form.

The post Casio Classwiz Complex Mode – Modulus & argument and Cartesian form appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.

  
You can use the Classwiz complex mode to input and work with a complex number. This video shows you how to input a complex number on a Classwiz calculator using i and looks at some of the options available, including finding the argument.

The post Casio Classwiz Complex Mode – Input a complex number and find argument appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.