Goodmorning everyone,
Parisse, do you know why when I solve log2(3+x)+log2(3-x)>=1 hp prime otput x>=-sqrt(7) and x<=sqrt(7) and with Khicas output x>=-sqrt(-e^1+36)\2 and x<=sqrt(-e^1+36)\2?
solve logarithmic inequalities with hp prime and khicas
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- Messages : 17
- Inscription : sam. nov. 25, 2017 9:35 am
Re: solve logarithmic inequalities with hp prime and khicas
Can you enter the precise commandline (algebraic syntax)?
There is no log2 function in giac.
There is no log2 function in giac.
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- Messages : 17
- Inscription : sam. nov. 25, 2017 9:35 am
Re: solve logarithmic inequalities with hp prime and khicas
Both with prime and Khicas i use the template "log" of the two calculators, then I enter 2 as base of the logarithm.parisse a écrit :Can you enter the precise commandline (algebraic syntax)?
There is no log2 function in giac.
Re: solve logarithmic inequalities with hp prime and khicas
The log template of the nspire is not recognized, try log_2(3.0) then enter. Use natural logarithm or logb(x,b) instead.
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- Messages : 17
- Inscription : sam. nov. 25, 2017 9:35 am
Re: solve logarithmic inequalities with hp prime and khicas
With logb(x,b) Works, thank you very muchparisse a écrit :The log template of the nspire is not recognized, try log_2(3.0) then enter. Use natural logarithm or logb(x,b) instead.