Contents Basics of Systems and Nodes | Using the Calculator | Basic Operators and Mathematical Functions | Macros - Signal Functions | Print page $SIG_VALUE_XExtracts a single abcissa value from channel for a specified ordinate value. Variable NameValue TypeVariable TypeArguments:_c CHANNEL [real, integer] _r SCALAR [real] « $SIG_VALUE_LAST_Y $SIG_VALUE_Y »