CORDIC



#5

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?


#6

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.


#7

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

#8

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.


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