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HP Fortran for OpenVMS
Language Reference Manual

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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
Key to Classes
E--Elemental
I--Inquiry
T--Transformational
N--Nonelemental

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