Is there a way in sagemath's BooleanPolynomialRing Change the value in the boolean function through the variable in the list - boolean-expression

when we can not determine which variable will be determine by a constant,i use a list use a list to store variables ,but the BooleanPolynomialRing do not support change the BooleanPolynomial by variables in list, It seems that it can only be changed by using the variable name; but when we encounter this situation ,is there another way to solve this problem
from sage.crypto.boolean_function import BooleanFunction
R=BooleanPolynomialRing(4,"a,b,c,d")
R.inject_variables()
S=R.gens()
print(S)
f=a*b+b*c
print(f(a=1))
print(f(S[0]=1))
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Related

Flutter, get text from intl from a function

I'm trying to get language from json, so i got a function who check if i have the key and return the text.
If i don't, i want to load text from intl/l10n.
The probleme is that i give the key as parameter and that works fine for the json as json[key] but for l10n, i need to give the real name for S.of(context).title, if i try to do S.of(context).key ,it says that that key it is not defined for the type S.
is there any way to do it, of course i want to use this function many time that is why i tried to go with dynamic value.
thanks

Retrive Variable in a variable group using another variable

I have variable group variable as given below
opp453.Name = "Raj"
pqr325.Name = "Shyam"
I know can I retrieve the variable group as below
$(opp453.Name) or $(pqr325.Name)
If I have another variable
$ptrref=opp453 or
$ptrref=pqr325
Then how can I refer to this variable inside the first variable
$($ptrref.Name)
to retrieve the original value
I think this is impossible to achieve at present because Nested variables are not supported yet in build pipeline/variable group.You can check this similar thread for some more details.
We could also use the same workaround, using InlinePowershell task to determine the value of ptrref, and set the value of opp453.Name/ pqr325.Name according to the value of ptrref.

Parse setting explicit type using REST

I know you can set a Date field explicitly like so:
"date_brewed":{
"__type":"Date",
"iso":"2009-10-15T00:00:00.000Z"
}
But is there anyway to explicitly set the column type of 'Number' using REST? For instance, I'd like to set the column 'batch_size' to a Number instead of a string but when POST'ing via rest it keeps getting created as a string type column.
Meh, this was more of a Perl issue than a Parse issue.
What I had to do to tell Perl to treat the number like an actual number was to add a zero to the value. :/

How to set BottonDownFcn to return the items place in the ordering like gname

I am looking for a function like gname to assign it to a point's callback
and when someone click on that point I could be able to retrieve its place
in the ordering of data.
Thanks.
I had a very hard time but used the UserData field to send the information in a for loop and
assign the value to each point as property and then simply getting it through dynamic callback.

Get statuscode text in C#

I'm using a plugin and want to perform an action based on the records statuscode value. I've seen online that you can use entity.FormattedValues["statuscode"] to get values from option sets but when try it I get an error saying "The given key was not present in the dictionary".
I know this can happen when the plugin cant find the change for the field you're looking for, but i've already checked that this does exist using entity.Contains("statuscode") and it passes by that fine but still hits this error.
Can anyone help me figure out why its failing?
Thanks
I've not seen the entity.FormattedValues before.
I usually use the entity.Attributes, e.g. entity.Attributes["statuscode"].
MSDN
Edit
Crm wraps many of the values in objects which hold additional information, in this case statuscode uses the OptionSetValue, so to get the value you need to:
((OptionSetValue)entity.Attributes["statuscode"]).Value
This will return a number, as this is the underlying value in Crm.
If you open up the customisation options in Crm, you will usually (some system fields are locked down) be able to see the label and value for each option.
If you need the label, you could either do some hardcoding based on the information in Crm.
Or you could retrieve it from the metadata services as described here.
To avoid your error, you need to check the collection you wish to use (rather than the Attributes collection):
if (entity.FormattedValues.Contains("statuscode")){
var myStatusCode = entity.FormattedValues["statuscode"];
}
However although the SDK fails to confirm this, I suspect that FormattedValues are only ever present for numeric or currency attributes. (Part-speculation on my part though).
entity.FormattedValues work only for string display value.
For example you have an optionset with display names as 1, 2, 3,
The above statement do not recognize these values because those are integers. If You have seen the exact defintion of formatted values in the below link
http://msdn.microsoft.com/en-in/library/microsoft.xrm.sdk.formattedvaluecollection.aspx
you will find this statement is valid for only string display values. If you try to use this statement with Integer values it will throw key not found in dictionary exception.
So try to avoid this statement for retrieving integer display name optionset in your code.
Try this
string Title = (bool)entity.Attributes.Contains("title") ? entity.FormattedValues["title"].ToString() : "";
When you are talking about Option set, you have value and label. What this will give you is the label. '?' will make sure that the null value is never passed.