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### 8.165 `MAX` — Maximum value of an argument list

Description:
  Returns the argument with the largest (most positive) value.
Standard:
  Fortran 77 and later
Class:
  Elemental function
Syntax:
  `RESULT = MAX(A1, A2 [, A3 [, ...]])`
Arguments:

  A1 | The type shall be `INTEGER` or `REAL`.
  A2, A3, ... | An expression of the same type and kind as A1. (As a GNU extension, arguments of different kinds are permitted.)

Return value:
  The return value corresponds to the maximum value among the arguments, and has the same type and kind as the first argument.
Specific names:

  Name | Argument | Return type | Standard
  `MAX0(A1)` | `INTEGER(4) A1` | `INTEGER(4)` | Fortran 77 and later
  `AMAX0(A1)` | `INTEGER(4) A1` | `REAL(MAX(X))` | Fortran 77 and later
  `MAX1(A1)` | `REAL A1` | `INT(MAX(X))` | Fortran 77 and later
  `AMAX1(A1)` | `REAL(4) A1` | `REAL(4)` | Fortran 77 and later
  `DMAX1(A1)` | `REAL(8) A1` | `REAL(8)` | Fortran 77 and later

See also:
  MAXLOC MAXVAL, MIN