Can someone do a calculation on a TI Inspire CAS?

02092019, 11:38 PM
Post: #17




RE: Can someone do a calculation on a TI Inspire CAS?
Hello!
If you are using the sin(pi) on a TInspire you get zero. But I think, the value of 3.1415926534 for pi is not a good choice. For calculation in real world physics normally you don't need so many significant digits, so I think using pi directly is ok. And I have tried several calcs: DM42: 1.897932384626433832783634455164435e10 DM15: 5.9e10 fx991DE PLUS: 1.898e10 HP300s+: 1.898e10 numworks: 1.8997932e10 HP35s: 1.89793238e10 2DS: 0 I have input the number from the last post 3.1415926534 (and not 3.141592654) with all digit if possible. As you can see one digit more, you get a result half as big as the other (4.102069e10 by numworks). So I think rounding to 0 is fine for real world problems. That's the reason HP choice FIX 4 as default for many calcs. Bernd 

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