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tostring
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Returns a string representation of a value.
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tonumber
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Returns the numeric value of a string.
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tinsert
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Inserts a value into a table.
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time
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Returns the numeric time value for a described date/time (or the current time)
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tan
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Alternative to math.tan, using degrees instead of radians.
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strupper
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Returns a copy of a string with all lowercase letters converted to uppercase.
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strsub
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Returns a substring of a string.
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strrev
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Returns the reverse of a string.
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strrep
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Returns a string produced by a number of repetitions of another string.
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strmatch
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Returns the matches for a for a pattern in a string.
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strlower
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Returns a copy of a string with all uppercase letters converted to lowercase.
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strlen
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Returns the number of characters in a string.
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strfind
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Returns information about matches for a pattern in a string.
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strchar
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Returns the character(s) for one or more numeric codes.
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strbyte
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Returns the numeric code for one or more characters in a string.
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sqrt
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Returns the square root of a number.
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sin
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Alternative to math.sin, using degrees instead of radians.
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setmetatable
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Sets the metatable for a table.
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setfenv
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Sets the environment to be used by a function.
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select
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Returns one or more values from a list (`...`), or the number of values in a list.
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rawset
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Sets the value associated with a key in a table without invoking any metamethods.
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rawget
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Returns the real value associated with a key in a table without invoking any metamethods.
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rawequal
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Returns whether two values are equal without invoking any metamethods.
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random
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Generates a pseudo-random number.
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rad
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Converts an angle specified in degrees to radians.
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pcall
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Executes a function in protected mode.
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pairs
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Returns an iterator function for a table.
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next
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Returns the next key/value pair in a table.
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mod
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Returns the remainder from division of two numbers.
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min
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Returns the least of a list of numbers.
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max
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Returns the greatest of a list of numbers.
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log10
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Returns the base-10 logarithm of a number.
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log
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Returns the natural logarithm of a number.
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loadstring
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Loads and compiles Lua source code.
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ldexp
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Returns the number generated by a normalized fraction and base-2 exponent.
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ipairs
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Returns an iterator function for integer keys in a table.
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gsub
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Returns a string in which occurrences of a pattern are replaced.
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gmatch
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Returns an iterator function for finding pattern matches in a string.
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getn
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This function is deprecated and should no longer be used.
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getmetatable
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Returns an object's metatable.
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getfenv
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Returns the environment for a function (or the global environment)
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gcinfo
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Returns the total Lua memory usage.
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frexp
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Returns the normalized fraction and base-2 exponent for a number.
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format
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Returns a formatted string containing specified values.
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foreachi
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This function is deprecated and should no longer be used.
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foreach
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This function is deprecated and should no longer be used.
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floor
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Returns the largest integer smaller than or equal to a number.
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exp
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Returns the value of the exponential function for a number.
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error
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Causes a Lua error message.
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