Can someone do a calculation on a TI Inspire CAS?

01292019, 05:09 PM
(This post was last modified: 01292019 05:27 PM by Albert Chan.)
Post: #11




RE: Can someone do a calculation on a TI Inspire CAS?
(01292019 07:58 AM)EdS2 Wrote: ... it helps to have an internal value for pi which is twice the number of digits We need even more digits of pi to handle bigger argument. Example, assumed all calculation in 24 digits precision : sin(411557987) = sin(411557987 mod (2 * pi)) ~ sin(411557987 mod (2 * 3.14159265358979323846264)) = sin(2.53671649518336E9) = 2.5367164951833599972794E9 Rounded back to 12 digits, sin(X) = 2.53671649518E9. 24 digits math only get 7 accurate digits ! Using spigot calculator: > spigot printf=%.12g sin(411557987) 2.53671605196e09 see FSIN "bug": Intel underestimates error bounds by 1.3 quintillion 

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