HP Fortran for OpenVMS
Language Reference Manual

Table 9-3 summarizes the generic intrinsic functions and indicates whether they are elemental, inquiry, or transformational functions, if applicable. Optional arguments are shown within square brackets.

Table 9-3 Summary of Generic Intrinsic Functions

Generic Function	Class	Value Returned
ABS (A)	E	The absolute value of an argument
ACHAR (I)	E	The character in the specified position of the ASCII character set
ACOS (X)	E	The arc cosine (in radians) of the argument
ACOSD (X)	E	The arc cosine (in degrees) of the argument
ADJUSTL (STRING)	E	The specified string with leading blanks removed and placed at the end of the string
ADJUSTR (STRING)	E	The specified string with trailing blanks removed and placed at the beginning of the string
AIMAG (Z)	E	The imaginary part of a complex argument
AINT (A [,KIND])	E	A real value truncated to a whole number
ALL (MASK [,DIM])	T	.TRUE. if all elements of the masked array are true
ALLOCATED (ARRAY)	I	The allocation status of the argument array
AMAX0 (A1, A2 [, A3,...])	E	The maximum value in a list of integers (returned as a real value)
AMIN0 (A1, A2 [, A3,...])	E	The minimum value in a list of integers (returned as a real value)
AND (I, J)	E	See IAND
ANINT (A [,KIND])	E	A real value rounded to a whole number
ANY (MASK [,DIM])	T	.TRUE. if any elements of the masked array are true
ASIN (X)	E	The arc sine (in radians) of the argument
ASIND (X)	E	The arc sine (in degrees) of the argument
ASM (STRING [,A,...])	N	A value stored in the appropriate register by the user.
ASSOCIATED (POINTER [,TARGET])	I	.TRUE. if the pointer argument is associated or the pointer is associated with the specified target
ATAN (X)	E	The arc tangent (in radians) of the argument
ATAND (X)	E	The arc tangent (in degrees) of the argument
ATAN2 (Y, X)	E	The inverse arc tangent (in radians) of the arguments
ATAN2D (Y, X)	E	The inverse arc tangent (in degrees) of the arguments
BIT_SIZE (I)	I	Returns the number of bits ( s) in the bit model
BTEST (I, POS)	E	.TRUE. if the specified position of argument I is one
CEILING (A [,KIND])	E	The smallest integer greater than or equal to the argument value
CHAR (I [,KIND])	E	The character in the specified position of the processor character set
CMPLX (X [,Y] [,KIND])	E	The corresponding complex value of the argument
CONJG (Z)	E	The conjugate of a complex number
COS (X)	E	The cosine of the argument, which is in radians
COSD (X)	E	The cosine of the argument which is in degrees
COSH (X)	E	The hyperbolic cosine of the argument
COTAN (X)	E	The cotangent of the argument, which is in radians
COTAND (X)	E	The cotangent of the argument, which is in degrees
COUNT (MASK [,DIM] [,KIND])	T	The number of .TRUE. elements in the argument array
CSHIFT (ARRAY, SHIFT [,DIM])	T	An array that has the elements of the argument array circularly shifted
DBLE (A)	E	The corresponding double precision value of the argument
DCMPLX (X, Y)	E	The corresponding double complex value of the argument
DFLOAT (A)	E	The corresponding double precision value of the integer argument
DIGITS (X)	I	The number of significant binary digits in the model for the argument
DIM (X, Y)	E	The positive difference between the two arguments
DOT_PRODUCT (VECTOR_A, VECTOR_B)	T	The dot product of two rank-one arrays (also called a vector multiply function)
EOSHIFT (ARRAY, SHIFT [,BOUNDARY] [,DIM])	T	An array that has the elements of the argument array end-off shifted
EPSILON (X)	I	The difference between 1.0 and the next larger model number.
EXP (X)	E	The exponential value for the argument
EXPONENT (X)	E	The value of the exponent part of a real argument
FLOAT (X)	E	The corresponding real value of the integer argument
FLOOR (A [,KIND])	E	The largest integer less than or equal to the argument value
FP_CLASS (X)	E	The class of the IEEE floating-point argument
FRACTION (X)	E	The fractional part of a real argument
HUGE (X)	I	The largest number in the model for the argument
IACHAR (C)	E	The position of the specified character in the ASCII character set
IAND (I, J)	E	The logical AND of the two arguments
IBCHNG (I, POS)	E	The reversed value of a specified bit
IBCLR (I, POS)	E	The specified position of argument I cleared (set to zero)
IBITS (I, POS, LEN)	E	The specified substring of bits of argument I
IBSET (I, POS)	E	The specified bit in argument I set to one
ICHAR (C)	E	The position of the specified character in the processor character set
IEOR (I, J)	E	The logical exclusive OR of the corresponding bit arguments
IFIX (X)	E	The corresponding integer value of the real argument rounded as if it were an implied conversion in an assignment
ILEN (I)	I	The length (in bits) in the two's complement representation of an integer
IMAG (Z)	E	See AIMAG
INDEX (STRING, SUBSTRING [,BACK] [,KIND])	E	The position of the specified substring in a character expression
INT (A [,KIND])	E	The corresponding integer value (truncated) of the argument
IOR (I, J)	E	The logical inclusive OR of the corresponding bit arguments
ISHA (I, SHIFT)	E	Argument I shifted left or right by a specified number of bits
ISHC (I, SHIFT)	E	Argument I rotated left or right by a specified number of bits
ISHFT (I, SHIFT)	E	The logical end-off shift of the bits in argument I
ISHFTC (I, SHIFT [,SIZE])	E	The logical circular shift of the bits in argument I
ISHL (I, SHIFT)	E	Argument I logically shifted left or right by a specified number of bits
ISNAN (X)	E	Tests for Not-a-Number (NaN) values
KIND (X)	I	The kind type parameter of the argument
LBOUND (ARRAY [,DIM] [,KIND])	I	The lower bounds of an array (or one of its dimensions)
LEADZ (I)	E	The number of leading zero bits in an integer.
LEN (STRING [,KIND])	I	The length (number of characters) of the argument character string
LEN_TRIM (STRING [,KIND])	E	The length of the specified string without trailing blanks
LGE (STRING_A, STRING_B)	E	A logical value determined by a > or = comparison of the arguments
LGT (STRING_A, STRING_B)	E	A logical value determined by a > comparison of the arguments
LLE (STRING_A, STRING_B)	E	A logical value determined by a < or = comparison of the arguments
LLT (STRING_A, STRING_B)	E	A logical value determined by a < comparison of the arguments
LOC (A)	I	The internal address of the argument.
LOG (X)	E	The natural logarithm of the argument
LOG10 (X)	E	The common logarithm (base 10) of the argument
LOGICAL (L [,KIND])	E	The logical value of the argument converted to a logical of type KIND
LSHIFT (I, POSITIVE_SHIFT)	E	See ISHFT
MATMUL (MATRIX_A, MATRIX_B)	T	The result of matrix multiplication (also called a matrix multiply function)
MAX (A1, A2 [, A3,...])	E	The maximum value in the set of arguments
MAX1 (A1, A2 [, A3,...])	E	The maximum value in the set of real arguments (returned as an integer)
MAXEXPONENT (X)	I	The maximum exponent in the model for the argument
MAXLOC (ARRAY [,DIM] [,MASK] [,KIND])	T	The rank-one array that has the location of the maximum element in the argument array
MAXVAL (ARRAY [,DIM] [,MASK])	T	The maximum value of the elements in the argument array
MERGE (TSOURCE, FSOURCE, MASK)	E	An array that is the combination of two conformable arrays (under a mask)
MIN (A1, A2 [, A3,...])	E	The minimum value in the set of arguments
MIN1 (A1, A2 [, A3,...])	E	The minimum value in the set of real arguments (returned as an integer)
MINEXPONENT (X)	I	The minimum exponent in the model for the argument
MINLOC (ARRAY [,DIM] [,MASK] [,KIND])	T	The rank-one array that has the location of the minimum element in the argument array
MINVAL (ARRAY [,DIM] [,MASK])	T	The minimum value of the elements in the argument array
MOD (A, P)	E	The remainder of the arguments (has the sign of the first argument)
MODULO (A, P)	E	The modulo of the arguments (has the sign of the second argument)
NEAREST (X, S)	E	The nearest different machine-representable number in a given direction
NINT (A [,KIND])	E	A real value rounded to the nearest integer
NOT (I)	E	The logical complement of the argument
NULL ([MOLD])	T	A disassociated pointer
OR (I, J)	E	See IOR
PACK (ARRAY, MASK [,VECTOR])	T	A packed array of rank one (under a mask)
POPCNT (I)	E	The number of 1 bits in an integer.
POPPAR (I)	E	The parity of an integer.
PRECISION (X)	I	The decimal precision (real or complex) of the argument
PRESENT (A)	I	.TRUE. if an actual argument has been provided for an optional dummy argument
PRODUCT (ARRAY [,DIM] [,MASK])	T	The product of the elements of the argument array
QCMPLX (X, Y)	E	The corresponding COMPLEX(16) value of the argument
QEXT (A)	E	The corresponding REAL(16) precision value of the argument.
QFLOAT (A)	E	The corresponding REAL(16) precision value of the integer argument.
RADIX (X)	I	The base of the model for the argument
RANGE (X)	I	The decimal exponent range of the model for the argument
REAL (A [,KIND])	E	The corresponding real value of the argument
REPEAT (STRING, NCOPIES)	T	The concatenation of zero or more copies of the specified string
RESHAPE (SOURCE, SHAPE [,PAD] [,ORDER])	T	An array that has a different shape than the argument array, but the same elements
RRSPACING (X)	E	The reciprocal of the relative spacing near the argument
RSHIFT (I, NEGATIVE_SHIFT)	E	See ISHFT
SCALE (X, I)	E	The value of the exponent part (of the model for the argument) changed by a specified value
SCAN (STRING, SET [,BACK] [,KIND])	E	The position of the specified character (or set of characters) within a string
SELECTED_INT_KIND (R)	T	The integer kind parameter of the argument
SELECTED_REAL_KIND ([P] [,R])	T	The real kind parameter of the argument; one of the optional arguments must be specified
SET_EXPONENT (X, I)	E	The value the first argument would have if its exponent part were set to the second argument
SHAPE (SOURCE [,KIND])	I	The shape (rank and extents) of an array or scalar
SIGN (A, B)	E	A value with the sign transferred from its second argument
SIN (X)	E	The sine of the argument, which is in radians
SIND (X)	E	The sine of the argument, which is in degrees
SINH (X)	E	The hyperbolic sine of the argument
SIZE (ARRAY [,DIM] [,KIND])	I	The size (total number of elements) of the argument array (or one of its dimensions)
SNGL (X)	E	The corresponding real value of the argument
SPACING (X)	E	The value of the absolute spacing of model numbers near the argument
SPREAD (SOURCE, DIM, NCOPIES)	T	A replicated array that has an added dimension
SQRT (X)	E	The square root of the argument
SUM (ARRAY [,DIM] [,MASK])	T	The sum of the elements of the argument array
TAN (X)	E	The tangent of the argument, which is in radians
TAND (X)	E	The tangent of the argument, which is in degrees
TANH (X)	E	The hyperbolic tangent of the argument
TINY (X)	I	The smallest positive number in the model for the argument
TRAILZ (I)	E	The number of trailing zero bits in an integer.
TRANSFER (SOURCE, MOLD [,SIZE])	T	The bit pattern of SOURCE converted to the type and kind parameters of MOLD
TRANSPOSE (MATRIX)	T	The matrix transpose for the rank-two argument array
TRIM (STRING)	T	The argument with trailing blanks removed
UBOUND (ARRAY [,DIM] [,KIND])	I	The upper bounds of an array (or one of its dimensions)
UNPACK (VECTOR, MASK, FIELD)	T	An array (under a mask) unpacked from a rank-one array
VERIFY (STRING, SET [,BACK] [,KIND])	E	The position of the first character in a string that does not appear in the given set of characters
XOR (I, J)	E	See IEOR
ZEXT (X [,KIND])	E	A zero-extended value of the argument

E--Elemental
I--Inquiry
T--Transformational
N--Nonelemental