+value2. The resulting square root is then assigned to the variable
root.
| Name | Description |
| ABS (A) | Absolute value. |
| ACHAR (I) | Character in position I of ASCII collating sequence. |
| ACOS (X) | Arc cosine (inverse cosine) function. |
| ADJUSTL (STRING) | Adjust left, removing leading blanks and inserting trailing blanks. |
| ADJUSTR (STRING) | Adjust right, removing trailing blanks and inserting leading blanks. |
| AIMAG (Z) | Imaginary part of complex number. |
| AINT (A[,KIND]) | Truncate to a whole number. |
| ALL (MASK [,DIM]) | True if all elements are true. |
| ALLOCATED (ARRAY) | True if the array is allocated. |
| ANINT (A,[,KIND]) | Nearest whole number. |
| ANY (MASK [,DIM]) | True if any element is true. |
| ASIN (X) | Arcsine(inverse sine) function. |
| ASSOCIATED (POINTER [,TARGET]) | True if pointer is associated with target. |
| ATAN (X) | Arctangent (inverse tangent) function. |
| ATAN2 (Y,X) | Argument of complex number (X, Y). |
| BIT_SIZE (1) | Maximum number of bits that may be held in an integer. |
| BTEST (I, POS) | True if bit POS of integer I has value 1. |
| CEILING (A) | Least integer greater than or equal to its argument. |
| CHAR (I [,KIND]) | Character in position I of the processor collating sequence. |
| CMPLX (X[,Y] [,KIND]) | Convert to COMPLEX type. |
| CONJG (Z) | Conjugate of a complex number. |
| COS (X) | Cosine function. |
| COSH(X) | |
| COUNT (MASK [,DIM]) | Number of true elements. |
| CSHIFT (ARRAY, SHIFT, [DIM]) | Perform circular shift. |
| CALL DATE_AND_TIME (DATE] [,TIME] {,ZONE] [,VALUES]) | Real-time clock reading date and time. |
| DBLE (A) | Convert to double precision real. |
| DIGITS (X) | Number of significant digits in the model for X. |
| DIM (X,Y) | Max (X-Y,0). |
| DOT_PRODUCT (VECTOR_A, VECTOR_B) | Dotproduct. |
| DPROD (X, Y) | Double precision real product of two default real scalars. |
| EOSHIFT (ARRAY, SHIFT [,BOUNDARY] [,DIM]) | Perform end-off shift. |
| EPSILON (X) | Number that is almost negligible compared with one in the model for numbers like X. |
| EXP (X) | Exponential function. |
| EXPONENT (X) | Exponent part of the model for X. |
| FLOOR (A) | Greatest integer less than or equal to its argument. |
| FRACTION (X) | Fractional part of the model for X. |
| HUGE (X) | Largest number in the model for numbers like X. |
| LACHAR (C) | Position of character C in ASCII collating sequence. |
| LAND (I, J) | Logical AND on the bits. |
| IBCLR (I, POS) | Clear bit POS to zero. |
| IBITS (I, POS, LEN) | Extract a sequence of bits. |
| IBSET (I, POS) | Set bit POS to one. |
| OCJAR (C) | Position of character C in the processor collating sequence. |
| IEOR (I, J) | Exclusive OR on the bits. |
| INDEX (STRING, SUBSTRING [BACK]) | Starting position of SUBSTRING within STRING. |
| INT (A [,KIND]) | Convert to integer type. |
| IOR (I, J) | Inclusive OR on the bits. |
| ISHFT (I, SHIFT) | Logical shift on the bits. |
| ISHFTC (I, SHIFT [,SIZE]) | Logical circular shift on a set of bits on the right. |
| KIND (X) | Kind type parameter value. |
| LBOUND (ARRAY [,DIM]) | Array lower bounds. |
| LEN (STRING) | Character length. |
| LEN_TRIM (STRING) | Length of STRING without trailing blanks. |
| LGE (STRING_A, STRING_B) | True if STRING_A equals or follows STRING_B in ASCII collating sequence. |
| LGT (STRING_A, STRING_B) | True if STRING_A follows STRING_B in ASCII collating sequence. |
| LLE (STRING_A, STRING_B) | True if STRING_A equals or precedes STRING_B in ASCII collating sequence. |
| LLT (STRING_A, STRING_B) | True if STRING_A precedes STRING_B in ASCII collating sequence. |
| LOG (X) | Natural (base e logarithm function. |
| LOGICAL (L,[,KIND]) | Convert between kinds of logicals. |
| LOG10 (X) | Common (base 10) logarithm function. |
| MATMUL (MATRIX_A, MATRIX_B) | Matrix multiplication. |
| MAX (A1,A2[,A3...]) | Maximum value. |
| MAXEXPONENT (X) | Maximum exponent in the model for numbers like X. |
| MAXLOC (ARRAY [,MASK]) | Location of maximum array element. |
| MAXVAL (ARRAY [,DIM] [,MASK]) | Value of maximum array element. |
| MERGE (TSOURCE, FSOURCE, MASK) | TSOURCE when MASK is true and FSOURCE otherwise. |
| MIN (A1,A2 [,A3,...]) | Minimum value. |
| MINEXPONENT (X) | Minimum exponent in the model for numbers like X. |
| MINLOC (ARRAY [,MASK]) | Location of minimum array element. |
| MINVAL (ARRAY [,DIM] [,MASK]) | Value of minimum array element. |
| MOD (A,P) | Remainder modulo P, that is A-INT(A/P)*P. |
| MODULO (A,P) | A modulo P. |
| CALL MVBITS (FROM, FROMPOS, LEN, TO, POS) | Copy bits. |
| NEAREST (X, S) | Nearest different machine number in the direction given by the sign of S. |
| NINT (A [,KIND]) | Nearest integer. |
| NOT (I) | Logical complement of the bits |
| PACK (ARRAY, MASK [VECTOR]) | Pack elements corresponding to true elements of MASK into rank-one result. |
| PRECISION (X) | Decimal precision in the model for X. |
| PRESENT (A) | True if optional argument is present. |
| PRODUCT (ARRAY [,DIM] [,MASK]) | Product of array elements. |
| RADIX (X) | Base of the model for numbers like X. |
| CALL RANDOM_NUMBER (HARVEST) | Random numbers in range 0 -< x <1. |
| CALL RANDOM_SEED ([SIZE][,PUT][,GET]) | Initialize or restart random number generator. |
| RANGE (X) | Decimal exponent range in the model for X. |
| REAL (A [,KIND]) | Convert to real type. |
| REPEAT (STRING, NCOPIES) | Concatenates NCOPIES of STRING. |
| RESHAPE (SOURCE, SHAPE [,PAD] [,ORDER]) | Reshape SOURCE to shape SHAPE. |
| RESPACING (X) | Reciprocal of the relative spacing of model numbers near X. |
| SCALE (X, I) | Xx b1, where b=RADIX(X). |
| SCAN (STRING, SET [,BACK]) | Index of left-most (right-most if BACK is true) character of STRING that belongs to SET; zero if none belong. |
| SELECTED_INT_KIND (R) | Kind of type parameter for specified exponent range. |
| SELECTED_REAL_KIND ([P] [,R]) | Kind of type parameter for specified precision and exponent range. |
| SET_EXPONENT (X, I) | Model number whose sign and fractional part are those of X and whose exponent part is I. |
| SHAPE (SOURCE) | Array (or scalar) shape. |
| SIGN (A, B) | Absolute value of A times sign of B. |
| SIN (X) | Sine function. |
| SINH (X) | Hyperbolic sine function. |
| SIZE (ARRAY [,DIM]) | Array size. |
| SPACINE (X) | Absolute spacing of model numbers near X. |
| SPREAD (SOURCE, DIM, NCOPIES) | NCOPIES copies of SOURCE forming an array of rank one greater. |
| SQRT (X) | Square root function. |
| SUM (ARRAY, [,DIM] [,MASK]) | Sum of array elements. |
| CALL SYSTEM_CLOCK ([COUNT] [,COUNT_RATE] [,COUNT_MAX]) | Integer data from real-time clock. |
| TAN (X) | Tangent function. |
| TANH (X) | Hyperbolic tangent function. |
| TINY (X) | Smallest positive number in the model for numbers like X. |
| TRANSFER (SOURCE, MOLD [,SIZE]) | Same physical representation as SOURCE, but type of MOLD. |
| TRANSPOSE (MATRIX) | Matrix transpose. |
| TRIM (STRING) | Remove trailing blanks from a single string. |
| UBOUND (ARRAY [,DIM]) | Array upper bounds. |
| UNPACK (VECTOR, MASK, FIELD) | Unpack elements of VECTOR corresponding to true elements of MASK. |
| VERIFY (STRING, SET [,BACK]) | Zero if all characters of STRING belong to SET or index of left-most (right-most if BACK true) that does not. |
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