Complex Number calculation with Casio fx115es and FX-991ES Plus C

[@oPvcsp]

been using this calc for 5 years. just knew about this, thanks mate.

[@curiousiris]

Thank you for the tutorial! So helpful for my PE Exam prep!

[@equaser]

You are welcome and good luck.

[@abdllfatahrafat5150]

very useful I liked your video

[@agentj1754]

Awesome, thanks dude

[@trapjewel5616]

SOOOOOO many thanks I wish to give you sir. Amazing Video

[@equaser]

You are welcome. Please share and subscribe.

[@袁佳诗]

thank you! so helpful!

[@equaser]

You are welcome.

[@kadrimacit7829]

Helal sana on numara video olmuş çok işime yaradı

[@equaser]

Google düzgün çevirmedi. Ama teşekkürler.

[@haselec]

Thanks man, keep up the good efforts

[@equaser]

you are welcome.

[@hubaituddin7639]

if x=1+i then what is the value of x^4-3x^4+2x^2+1 by using fx 570 es plus calculator

[@equaser]

I don't have the calculator in hand, but you can enter the value and do it.

[@GeoCalifornian]

8+5i is in rectangular form; not polar form

[@equaser]

sure it is not polar.

[@GeoCalifornian]

In your video at 1:17, you refer to 8+5i as "polar form", and even later, too, in the video.

[@equaser]

you are right. I have to see what I can do. to correct it. Thanks.

[@ruthgonzalez1248]

thank you

[@rider2731]

I tried to calculate e to the power of i pie. I have set the mode to CMPLX, and press the i button before inputing pie, but I kept getting error responses. I know that the correct answer is -1. Can you please help. Thank you.

[@Crazytesseract]

The Casio calculators Non programmable models do not support this function for complex numbers, so you shall get an error. Download the HP 42S calculator app (Free42) from Google Play Store, and try it out. You have to be familiar with RPN system. Go to Wikipedia, HP 42S article, then download the manual from the link provided, and you need to read it.

[@hlbarathpugal9290]

Bro can u pls find out complex number 12cos105°+6i sin105°

[@khwannorilious653]

Thank you very much.

[@equaser]

You are welcome. 👍

[@Dusiek666]

Can anyone tell me why on my 570es and 991es I cannot root from complex?

[@equaser]

You meant taking root in complex mode?

[@hlbarathpugal9290]

Complex number 12cos 105°+6i sin105° find values of r and T

[@equaser]

can't do the complex value of those.

[@thdestiny4907]

thanks

[@khwannorilious653]

Expensive and Expensive

[@equaser]

May be.

[@RiteshPanditM-]

How to degre find

[@equaser]

?

[@Kamithefirst12]

Thank you