diff --git a/Frontend/src/assets/tooltips/xpath/xpath2.json b/Frontend/src/assets/tooltips/xpath/xpath2.json
index 8e5eb2d..b201f65 100644
--- a/Frontend/src/assets/tooltips/xpath/xpath2.json
+++ b/Frontend/src/assets/tooltips/xpath/xpath2.json
@@ -933,6 +933,28 @@
     {
         "name": "Number",
         "entries": [
+            {
+                "name": "number()",
+                "description": "Returns the value indicated by $arg or, if $arg is not specified, the context item after atomization, converted to an xs:double.",
+                "arguments": [
+                    {
+                        "type": "xs:anyAtomicType? (Optional)",
+                        "description": "Value to convert to number"
+                    }
+                ],
+                "output": "xs:double",
+                "examples": [
+                    {
+                        "command": "number(123)",
+                        "output": "123"
+                    },
+                    {
+                        "command": "number('Release11')",
+                        "output": "NaN"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-number"
+            },
             {
                 "name": "avg()",
                 "description": "Returns the number of items in the value of $arg. Returns 0 if $arg is the empty sequence.",
@@ -1016,6 +1038,163 @@
                     }
                 ],
                 "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-sum"
+            },
+            {
+                "name": "abs()",
+                "description": "Returns the absolute value of $arg.",
+                "arguments": [
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$arg"
+                    }
+                ],
+                "output": "numeric?",
+                "examples": [
+                    {
+                        "command": "abs(25)",
+                        "output": "25"
+                    },
+                    {
+                        "command": "abs(-25)",
+                        "output": "25"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-abs"
+            },
+            {
+                "name": "ceiling()",
+                "description": "Returns the smallest (closest to negative infinity) number with no fractional part that is not less than the value of $arg.",
+                "arguments": [
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$arg"
+                    }
+                ],
+                "output": "numeric?",
+                "examples": [
+                    {
+                        "command": "ceiling(10.5)",
+                        "output": "11"
+                    },
+                    {
+                        "command": "ceiling(-10.5)",
+                        "output": "10"
+                    },
+                    {
+                        "command": "ceiling(10.1)",
+                        "output": "11"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-ceiling"
+            },
+            {
+                "name": "floor()",
+                "description": "Returns the largest (closest to positive infinity) number with no fractional part that is not greater than the value of $arg.",
+                "arguments": [
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$arg"
+                    }
+                ],
+                "output": "numeric?",
+                "examples": [
+                    {
+                        "command": "floor(10.5)",
+                        "output": "10"
+                    },
+                    {
+                        "command": "floor(-10.5)",
+                        "output": "-11"
+                    },
+                    {
+                        "command": "floor(10.1)",
+                        "output": "10"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-floor"
+            },
+            {
+                "name": "round()",
+                "description": "Returns the number with no fractional part that is closest to the argument.",
+                "arguments": [
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$arg"
+                    }
+                ],
+                "output": "numeric?",
+                "examples": [
+                    {
+                        "command": "round(10.5)",
+                        "output": "11"
+                    },
+                    {
+                        "command": "round(-10.5)",
+                        "output": "-10"
+                    },
+                    {
+                        "command": "round(10.1)",
+                        "output": "10"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-round"
+            },
+            {
+                "name": "round-half-to-even()",
+                "description": "The value returned is the nearest (that is, numerically closest) value to $arg that is a multiple of ten to the power of minus $precision. If two such values are equally near (e.g. if the fractional part in $arg is exactly .500...), the function returns the one whose least significant digit is even.",
+                "arguments": [
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$arg"
+                    },
+                    {
+                        "type": "numeric? (Optional)",
+                        "description": "$precision"
+                    }
+                ],
+                "output": "numeric?",
+                "examples": [
+                    {
+                        "command": "round-half-to-even(0.5)",
+                        "output": "0"
+                    },
+                    {
+                        "command": "round-half-to-even(1.5)",
+                        "output": "2"
+                    },
+                    {
+                        "command": "round-half-to-even(2.5)",
+                        "output": "2"
+                    },
+                    {
+                        "command": "round-half-to-even(2.6)",
+                        "output": "3"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#round-half-to-even"
+            }
+        ]
+    },
+    {
+        "name": "Collections",
+        "entries": [
+            {
+                "name": "avg()",
+                "description": "Returns the number of items in the value of $arg. Returns 0 if $arg is the empty sequence.",
+                "arguments": [
+                    {
+                        "type": "xs:anyAtomicType* (One or more)",
+                        "description": "$arg"
+                    }
+                ],
+                "output": "xs:anyAtomicType",
+                "examples": [
+                    {
+                        "command": "avg(//u:User/@Id)",
+                        "output": "2.6"
+                    }
+                ],
+                "documentationReferenceURL": "https://www.w3.org/TR/xquery-operators/#func-avg"
             }
         ]
     }