Infinity constants on WP-34s - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: Infinity constants on WP-34s (/thread-245296.html) |
Infinity constants on WP-34s - Marcel Samek - 06-19-2013 The manual (3.1) says that the constants positive and negative infinity are considered numeric values. However, if I try using them as limits to the integrate operator, I get a "not numeric" error. Is this a bug or by design?
Re: Infinity constants on WP-34s - Paul Dale - 06-19-2013 By design. The integration code cannot handle infinite limits, so they are disallowed. There are transforms that can be used to reduce the limits to something finite -- old HP manuals detail one procedure.
Re: Infinity constants on WP-34s - Marcel Samek - 06-19-2013 Out of curiosity, are there any functions on the WP-34s where the infinity constants can actually be used?
Re: Infinity constants on WP-34s - Paul Dale - 06-20-2013 Yes, plenty. Two easy ones: e-infinity gives zero and TANH(infinity) is one. If you are going to start playing with infinities on the 34S, make sure you set the D flag.
Re: Infinity constants on WP-34s - Paul Dale - 06-20-2013 Also stuff like 1/infinity = zero and 1/-infinity = - zero.
- Pauli
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