+
Set Algebra Calculator
+
+
-
Define sets: A, B, C, and Universal set. Then write the problem you need to solve.
+
Set is a collection of elements.
Add up to 26 sets. Define them (leave empty for empty set). Then write the formula you need to solve.
!
-
Complement
+
Complement - get set of elements that are in the universal set, but are not in your set.
/
-
Intersection
+
Intersection - get set of elements that are both in your sets.
+
-
Union
+
Union - get set of all elements that are in your sets.
-
-
Substraction
+
Substraction- get set of elements that are in the first set, but not in the second.
diff --git a/Set-Algebra/script.js b/Set-Algebra/script.js
index b13cfa8..0b8d6a7 100644
--- a/Set-Algebra/script.js
+++ b/Set-Algebra/script.js
@@ -6,19 +6,62 @@ function AddSet() {
if (currNum < 26) {
let charNum = 65 + currNum;
+ symbols2.push(alphabet[currNum]);
currNum++;
node = document.getElementById('sets');
node.insertAdjacentHTML('beforeend', `
`);
-
} else {
alert('You have reached a limint of available sets');
}
}
+//----------------------------- Check Input ---------------------------
+
+const alphabet = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
+ 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+ 'W', 'X', 'Y', 'Z'
+];
+
+const symbols = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'Backspace', 'ArrowLeft', 'ArrowRight', 'Delete', 'Shift'];
+
+function checkInputSet(key, value, id) {
+ if (value[value.length - 1] == ',' && symbols.indexOf(key) !== -1) {
+ return true;
+ } else if (symbols.indexOf(value[value.length - 1]) !== -1 && key == ',') {
+ return true;
+ } else if (symbols.indexOf(key) !== -1) {
+ return true;
+ } else {
+ function backBg() { document.getElementById(id).style.backgroundColor = 'rgba(255, 255, 255, 0)' }
+ document.getElementById(id).style.backgroundColor = 'rgba(235, 52, 116, 0.7)';
+ document.getElementById(id).style.transition = '0.2s';
+ setTimeout(backBg, 600);
+ return false;
+ }
+}
+
+
+let symbols2 = ['A', 'B', 'Backspace', 'ArrowLeft', 'ArrowRight', 'Delete', 'Shift',
+ '-', '+', '/', '!', '(', ')'
+];
+
+function checkInputProblem(key, id) {
+ if (symbols2.indexOf(key) != -1) {
+ return true;
+ } else {
+ function backBg() { document.getElementById(id).style.backgroundColor = 'rgba(255, 255, 255, 0)' }
+ document.getElementById(id).style.backgroundColor = 'rgba(235, 52, 116, 0.7)';
+ document.getElementById(id).style.transition = '0.2s';
+ setTimeout(backBg, 600);
+ return false;
+ }
+}
+
+
let universalSet = new Set();
function Complement(set) {
@@ -282,19 +325,26 @@ function checkEmpty(set) {
return (set == undefined || set.size == 0) ? true : false;
}
-//----------------------------- Step by Step ---------------------------
+//----------------------------- Step by Step -------------------------------------------
function stepByStep() {
+ if (document.getElementById('formula').value.length < 2) return;
+
let stepByStep = document.getElementById('stepByStep');
let clear = document.getElementById('steps');
clear.remove();
-
step = 0;
stepByStep.classList.remove('hide');
stepByStep.insertAdjacentHTML('beforeend', `
Step by step
`);
Evaluate();
+
+ let scrollBody = document.getElementById('container');
+ scrollBody.querySelector("#stepByStep").scrollIntoView({
+ behavior: "smooth",
+ block: "center"
+ });
}
let step = 0;
@@ -347,31 +397,4 @@ function setToString(set) {
}
}
return '{ ' + str.slice(2, str.length) + ' }';
-}
-
-
-//----------------------------- Check Input ---------------------------
-
-const symbols = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'Backspace', 'ArrowLeft', 'ArrowRight', 'Delete'];
-
-function checkInputSet(key, value) {
- if (value[value.length - 1] == ',' && symbols.indexOf(key) !== -1) {
- return true;
- } else if (symbols.indexOf(value[value.length - 1]) !== -1 && key == ',') {
- return true;
- } else if (symbols.indexOf(key) !== -1) {
- return true;
- } else {
- return false;
- }
-}
-
-const symbols2 = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
- 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
- 'W', 'X', 'Y', 'Z', 'Backspace', 'ArrowLeft', 'ArrowRight', 'Delete',
- '-', '+', '/', '!', '(', ')'
-];
-
-function checkInputProblem(key) {
- return (symbols2.indexOf(key) != -1) ? true : false;
}
\ No newline at end of file