Research Fellow (Cell Biology)
Nanyang Technological University

See the full job description on jobRxiv: https://jobrxiv.org/job/nanyang-technological-university-27778-research-fellow-cell-biology/

#Cellstress #CRISPRscreen #hostpathogeninteractions #radicals #tissuerepair #ScienceJobs #hiring #research
https://jobrxiv.org/job/nanyang-technological-university-27778-research-fellow-cell-biology/?fsp_sid=11705

Research Fellow (Cell Biology)
Nanyang Technological University

See the full job description on jobRxiv: https://jobrxiv.org/job/nanyang-technological-university-27778-research-fellow-cell-biology/

#Cellstress #CRISPRscreen #hostpathogeninteractions #radicals #tissuerepair #ScienceJobs #hiring #research
https://jobrxiv.org/job/nanyang-technological-university-27778-research-fellow-cell-biology/?fsp_sid=10849

So, I teach high school math and we use numworks graphing calculators. They've been excellent! However, I recently ran across an issue that shows you can't always trust what your calculator says.

Suppose you want to take the cube root of negative 230. You should get approximately -6.127. It is perfectly fine to take the cube root of a negative number and get a real result. However, if the calculator is in Complex/Cartesian mode for displaying complex numbers, you get approximately 3.063+0.306i. Simply moving the negative sign outside of the radical sign (again, this is just fine to do in high school), you get the correct answer as shown below.

I wonder what causes this?

#math #HighSchool #teaching #calculator #numworks #radicals

"It's not about the money... it's about sending a message."

https://piefed.social/c/historymemes/p/1791266/it-s-not-about-the-money-it-s-about-sending-a-message