CORDIC

[Sok-khieng Chum Hun]

HP calculators older then the HP 48 use CORDIC for their trigonometric and logarithmic capabilities.

Do newer calculators such as HP 35s, TI 89 or TI NSPIRE do the same?

[Matt Agajanian]

But, wouldn't that mean that the 48 series shared the same trig bugs as the 35S?

Edited: 28 Apr 2012, 8:31 p.m.

[Eric Smith]

No. The bugs weren't a fault of the CORDIC algorithm, but of the specific code implementing it.

[Eric Smith]

Yes, most calculators using CORDIC algorithms for their trigonometric and inverse trigonometric functions. HP used them starting with the 9100A desktop computer in 1968 through some of their latest calculators. I don't know whether CORDIC is used in the relatively recent HP-branded calculators that were not actually developed by HP.