Open Watcom FORTRAN 77 Language Reference

Table of Contents
12.3.19 Length .............................................................................................................. 254
12.3.20 Length Without Trailing Blanks ...................................................................... 254
12.3.21 Index of a Substring ......................................................................................... 255
12.3.22 Imaginary Part of Complex Number ............................................................... 255
12.3.23 Conjugate of a Complex Number .................................................................... 255
12.3.24 Square Root ..................................................................................................... 256
12.3.25 Exponential ...................................................................................................... 256
12.3.26 Natural Logarithm ........................................................................................... 257
12.3.27 Common Logarithm ......................................................................................... 257
12.3.28 Sine .................................................................................................................. 258
12.3.29 Cosine .............................................................................................................. 258
12.3.30 Tangent ............................................................................................................ 259
12.3.31 Cotangent ......................................................................................................... 259
12.3.32 Arcsine ............................................................................................................. 259
12.3.33 Arccosine ......................................................................................................... 260
12.3.34 Arctangent ....................................................................................................... 260
12.3.35 Hyperbolic Sine ............................................................................................... 261
12.3.36 Hyperbolic Cosine ........................................................................................... 261
12.3.37 Hyperbolic Tangent ......................................................................................... 261
12.3.38 Gamma Function ............................................................................................. 262
12.3.39 Natural Log of Gamma Function ..................................................................... 262
12.3.40 Error Function .................................................................................................. 262
12.3.41 Complement of Error Function ........................................................................ 263
12.3.42 Lexically Greater Than or Equal ..................................................................... 263
12.3.43 Lexically Greater Than .................................................................................... 263
12.3.44 Lexically Less Than or Equal .......................................................................... 263
12.3.45 Lexically Less Than ......................................................................................... 264
12.3.46 Binary Pattern Processing Functions: Boolean AND ...................................... 264
12.3.47 Binary Pattern Processing Functions: Boolean Inclusive OR ......................... 264
12.3.48 Binary Pattern Processing Functions: Boolean Exclusive OR ........................ 265
12.3.49 Binary Pattern Processing Functions: Boolean Complement .......................... 265
12.3.50 Binary Pattern Processing Functions: Logical Shift ........................................ 265
12.3.51 Binary Pattern Processing Functions: Arithmetic Shift ................................... 266
12.3.52 Binary Pattern Processing Functions: Circular Shift ....................................... 267
12.3.53 Binary Pattern Processing Functions: Bit Testing ........................................... 268
12.3.54 Binary Pattern Processing Functions: Set Bit .................................................. 268
12.3.55 Binary Pattern Processing Functions: Clear Bit .............................................. 268
12.3.56 Binary Pattern Processing Functions: Change Bit ........................................... 269
12.3.57 Binary Pattern Processing Functions: Arithmetic Shifts ................................. 269
12.3.58 Allocated Array ............................................................................................... 270
12.3.59 Memory Location ............................................................................................ 270
12.3.60 Size of Variable or Structure ........................................................................... 270
12.3.61 Volatile Reference ........................................................................................... 270
12.4 External Functions ........................................................................................................... 271
12.4.1 Referencing an External Function ..................................................................... 272
12.4.2 Actual Arguments for an External Function ...................................................... 272
12.4.3 External Function Subprogram Restrictions ...................................................... 273
12.5 Subroutines ....................................................................................................................... 273
12.5.1 Referencing a Subroutine: The CALL Statement .............................................. 273
12.5.2 Actual Arguments for a Subroutine ................................................................... 273
12.5.3 Subroutine Subprogram Restrictions ................................................................. 274
12.6 The ENTRY Statement .................................................................................................... 274
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