yes:
(56) -> MV(x) == (1+sin(x/sqrt(2)))/2
Type:
Void
(57) -> MV 0.3
Compiling function MV with type Float -> Expression(Float)
(57) 0.60527231
Type:
Expression(Float)
I even would expect the result here being in Float
Am 22.10.15 um 22:41 schrieb Bill Page:
> (1) -> NV(x:Float):Float == (1+erf(x/sqrt(2)))/2
> Function declaration NV : Float -> Float has been added to
> workspace.
> Type: Void
> (2) -> NV(0.7)
> Compiling function NV with type Float -> Float
>
> (2) 0.7580363477_7692698525
> Type: Float
>
> Or is your point that this should not be necessary?
>
>
> On 22 October 2015 at 13:26, Prof. Dr. Johannes Grabmeier privat
> <[email protected]> wrote:
>> another problem with numeric evaluations for computing the normal
>> distribution using the error function.
>> To my opinion, numeric NV(0.7) directly should return 0.7580363478
>>
>>
>>
>> Type:
>> Float
>> (52) -> NV(x) == (1+erf(x/sqrt(2)))/2
>> Compiled code for NV has been cleared.
>> 1 old definition(s) deleted for function or rule NV
>> Type:
>> Void
>> (53) -> numeric NV(0.7)
>> Compiling function NV with type Float -> Expression(Float)
>>
>> >> Error detected within library code:
>> Can only compute the numerical value of a constant, real-valued
>> Expression
>>
>> (53) -> NV(0.7)
>>
>> (53) 0.5 erf(0.4949747468) + 0.5
>> Type:
>> Expression(Float)
>> (54) -> numeric NV(0.7)
>>
>> >> Error detected within library code:
>> Can only compute the numerical value of a constant, real-valued
>> Expression
>>
>> (54) -> erf(0.4949747468)
>>
>> (54) 0.5160726955_315973
>>
>> (55) -> 0.5*erf(0.4949747468)+0.5
>>
>> (55) 0.7580363478
>> Type:
>> Float
>>> --
>>> Mit freundlichen Grüßen
>>>
>>> Johannes Grabmeier
>>>
>>> Prof. Dr. Johannes Grabmeier
>>> Köckstraße 1, D-94469 Deggendorf
>>> Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756
>>> Tel. +49-(0)-991-3615-141 (d), Fax: +49-(0)-3224-192688
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--
Mit freundlichen Grüßen
Johannes Grabmeier
Fraktionsvorsitzender
FREIE WÄHLER, Stadtrat Deggendorf
Prof. Dr. Johannes Grabmeier
Köckstraße 1, D-94469 Deggendorf
Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756
Fax: +49-(0)-3224-192688
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