is x a predefined function?

[XcasEngGuy]

I noticed x(t) is equal to t:

Capture_20230610-194348.jpg (11.61 Kio) Consulté 892 fois

Is this intended? I am including a test of all the single letter functions. I understand i and e, because they are predefined. t(t) makes no sense, so xcas assumes multiplication. I was wondering about x(t).

test.zip

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[parisse]

x and t behaves like that, i.e., x(val) or t(val) will return val. The reason is that many users are using expressions like functions, e.g. f:=x^2+5x then f(2)
and they would be disturbed by the warning message.
Expressions are in terms of x or t most of the time, especially on calculators ports.