| Function syntax | Type of return value |
|---|---|
| ABS (gen) | Same as argument |
| ACOS (real) | Same as argument |
| AIMAG (cmp8) | REAL |
| AINT (real) | Same as argument |
| ALOG (real4) | REAL |
| ALOG10 (real4) | REAL |
| AMAX0 (intA, intB [, intC ] ...) | REAL |
| AMAX1 (real4A, real4B, [, real4C ] ...) | REAL |
| AMIN0 (intA, intB [, intC ] ...) | REAL |
| AMIN1 (real4A, real4B [, real4C ] ...) | REAL |
| AMOD (value, mod) | REAL |
| ANINT (value) | REAL |
| ASIN (real) | Same as argument |
| ATAN (real) | Same as argument |
| ATAN2 (realA, realB) | Same as argument |
| CABS (cmp) | Same as argument; COMPLEX returns REAL |
| CCOS (cmp8) | COMPLEX |
| CHAR (int) | CHARACTER |
| CLOG (cmp8) | COMPLEX |
| CMPLX (genA [, genB ]) | COMPLEX |
| CONJG (cx8value) | COMPLEX |
| COS (gen) | Same as argument |
| COSH (real) | Same as argument |
| CSIN (cmp8) | COMPLEX |
| CSQRT (cx8value) | COMPLEX |
| DABS (r8value) | DOUBLE PRECISION |
| DACOS (dbl) | DOUBLE PRECISION |
| DASIN (dbl) | DOUBLE PRECISION |
| DATAN (dbl) | DOUBLE PRECISION |
| DATAN2 (dblA, dblB) | DOUBLE PRECISION |
| DBLE (value) | DOUBLE PRECISION |
| DCOS (dbl) | DOUBLE PRECISION |
| DCOSH (dbl) | DOUBLE PRECISION |
| DDIM (dblA, dblB) | DOUBLE PRECISION |
| DEXP (dbl) | DOUBLE PRECISION |
| DIM (genA, genB) | Same as arguments |
| DINT (rvalue) | DOUBLE PRECISION |
| DLOG (dbl) | DOUBLE PRECISION |
| DLOG10 (dbl) | DOUBLE PRECISION |
| DMAX1 (dblA, dblB [, dblC ] ...) | DOUBLE PRECISION |
| DMIN1 (dblA, dblB [dblC ] ...) | DOUBLE PRECISION |
| DMOD (value, mod) | DOUBLE PRECISION |
| DNINT (dbl) | DOUBLE PRECISION |
| DPROD (real4A, real4B) | DOUBLE PRECISION |
| DREAL (cxvalue) | DOUBLE PRECISION |
| DSIGN (dblA, dblB) | DOUBLE PRECISION |
| DSIN (dbl) | DOUBLE PRECISION |
| DSINH (dbl) | DOUBLE PRECISION |
| DSQRT (rvalue) | DOUBLE PRECISION |
| DTAN (dbl) | DOUBLE PRECISION |
| DTANH (dbl) | DOUBLE PRECISION |
| EXP (gen) | Same as argument |
| FLOAT (ivalue) | REAL |
| IABS (int) | Same as argument |
| ICHAR (char) | INTEGER |
| IDIM (intA, intB) | INTEGER |
| IDINT (dbl) | INTEGER |
| IDNINT (dbl) | INTEGER |
| IFIX (real4) | REAL |
| INDEX (charA, charB) | INTEGER |
| INT (gen) | INTEGER |
| ISIGN (intA, intB) | INTEGER |
| LEN (char) | INTEGER |
| LGE (charA, charB) | LOGICAL |
| LGT (charA, charB) | LOGICAL |
| LLE (charA, charB) | LOGICAL |
| LLT (charA, charB) | LOGICAL |
| LOG (gen) | Same as argument |
| LOG10 (real) | Same as argument |
| MAX (genA, genB [, genC ] ...) | INTEGER or REAL |
| MAX0 (intA, intB [, intC ] ...) | INTEGER |
| MAX1 (realA, realB [, realC ] ...) | INTEGER |
| MIN (genA, genB [, genC ] ...) | INTEGER or REAL |
| MIN0 (intA, intB [, intC ] ...) | INTEGER |
| MIN1 (realA, real [, real ] ...) | INTEGER |
| MOD (genA, genB) | REAL |
| NINT (real) | INTEGER |
| REAL (gen) | REAL |
| SIGN (genA, genB) | INTEGER or REAL |
| SIN (gen) | Same as argument |
| SINH (real) | Same as argument |
| SNGL(dbl) | REAL |
| SQRT (gen) | Same as argument |
| TAN (real) | Same as argument |
| TANH (real) | Same as argument |