Initially Known Names
Declaring a Protected Name as Local
The following names are known, either as global or environment variables under user control or as names of constants known to certain functions.
Catalan's constant = ∑i=0∞⁡−1i2⁢i+12 and evalf(Catalan) is approximately 0.915965594.
See constants (default is the sequence: false, gamma, infinity, true, Catalan, FAIL, Pi ).
number of digits carried in floats (default is 10). Digits is an environment variable.
unknown truth in the context of Boolean evaluation using three-valued logic.
the value false (false) in the context of Boolean evaluation.
Euler's constant = limn→∞⁡∑i=1n⁡1i−ln⁡n and evalf(gamma) is approximately 0.5772156649.
a series of constants such that gamma(n) = limm→∞∑k=1mln⁡knk−ln⁡mn+1n+1 . Also known as Stieltjes constants. gamma(0) = gamma, Euler's constant.
complex number such that I^2 = -1 (i). Internally, I is represented as Complex(1).
name for ∞ used by some library functions.
initially assigned the function name int.
pathnames of libraries read by Maple. By default, the root of the standard Maple library.
initially assigned the function name modp; for symmetric representation, assign `mod` := mods; (mod is an operator). Mod is an environment variable.
initialized to the null expression sequence.
truncation order for series (default is 6); see also Order. Order is an environment variable.
math constant π (pi); use Pi for calculations. evalf(Pi) is approximately 3.14159265.
See printlevel (default is 1). Printlevel is an environment variable.
the value true (true) in the context of Boolean evaluation.
name for undefined used by some library functions.
If you prefer to use a protected name, you can do one of the following to avoid getting an error:
Use local to declare a local version of the name
Use unprotect to remove protection from the protected name
Note: It is not recommended that you remove protection from Maple protected names. If you must use a Maple protected name, you should declare a local version of the name.
Declaring a Protected Name Local
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