Table 5.  Correspondence Between Clib and ECMAScript Methods
    |  |  |  | 
    | abs() | Calculates absolute value | Math.abs() | 
    | acos() | Calculates the arc cosine | Math.acos() | 
    | asin() | Calculates the arc sine | Math.asin() | 
    | atan() | Calculates the arc tangent | Math.atan() | 
    | atan2() | Calculates the arc tangent of a fraction | Math.atan2() | 
    | atof() | Converts a string to a floating-point number | Automatic conversion | 
    | atoi() | Converts a string to an integer | Automatic conversion | 
    | atol() | Converts a string to a long integer | Automatic conversion | 
    | ceil() | Rounds a number up to the nearest integer | Math.ceil() | 
    | cos() | Calculates the cosine | Math.cos() | 
    | exp() | Computes the exponential function | Math.exp() | 
    | fabs() | Computes the absolute value of a floating-point number | Math.abs() | 
    | floor() | Rounds a number down to the nearest integer | Math.floor() | 
    | fmod() | Calculates the remainder | % operator, modulo | 
    | labs() | Returns the absolute value of a long | Math.abs() | 
    | log() | Calculates the natural logarithm | Math.log() | 
    | max() | Returns the largest of one or more values | Math.max() | 
    | min() | Returns the smallest of one or more values | Math.min() | 
    | pow() | Calculates x to the power of y | Math.pow() | 
    | sin() | Calculates the sine | Math.sin() | 
    | sqrt() | Calculates the square root | Math.sqrt() | 
    | strcat() | Appends one string to another | + operator | 
    | strcmp() | Compares two strings | == operator | 
    | strcpy() | Copies a string | = operator | 
    | strlen() | Gets the length of a string | string.length | 
    | strlwr() | Converts a string to lowercase | string.toLowerCase | 
    | strtod() | Converts a string to decimal | Automatic conversion | 
    | strtol() | Converts a string to long | Automatic conversion | 
    | strupr() | Converts a string to uppercase | string.toUpperCase | 
    | tan() | Calculates the tangent | Math.tan() | 
    | tolower() | Converts a character to lowercase | string.toLowerCase | 
    | toupper() | Converts a character to uppercase | string.toUpperCase |