//Created by Mofetoluwa //version 4.1 alert("version 4.1") /* alert("This is the third update of my scientific calculator\nCalmo version 3"); alert("I should specially thank SoloLearn for all that I've learnt in coding and also show some gratitude to Airree and Summie for working with me to build this small project.") alert("Enjoy!!") */ $(function() { $("#sSC").click(function() { $("#sC").fadeToggle(500); $("#hSC").fadeToggle(0); $("#sSC").fadeToggle(0); }); }); $(function() { $("#hSC").click(function() { $("#sC").fadeToggle(500); $("#sSC").fadeToggle(0); $("#hSC").fadeToggle(0); }); }); const symbol = (integer) => { let calMo = // var still works for let document.getElementById("output"); //displays the value and algorithm for which the numbers and operands are to be evaluated let string = calMo.value //creates an array with the input's values as its elements let usingSplit = string.split('') let num = 0 //counts the number of elements in the array for(i in usingSplit) { num++; } //a variable to store the total number of elements in the array let open = num - 1 //to allow only a plus symbol or a minus symbol or a number as the first symbol to be typed if((usingSplit.length < 2) && (/[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer))) { if((usingSplit.length < 1) && (/[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer))) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } else if((usingSplit[0]==="+" || usingSplit[0]==="-") && /[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer)){ let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; calMo.value = usingSplit[0] } else { calMo.value += integer } //a program that checks for the exponentiation symbol and changes it to the symbol that is clicked on except plus or minus symbol } else if((usingSplit[num-1]==="(" && /[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer)) || (usingSplit[num-2]==="(" && ((usingSplit[num-1]==="+") || (usingSplit[num-1]===("-"))) && /[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer))) { if(usingSplit[num-1]==="(") { let i = 1 let x = 2 while(x > 0){ if(usingSplit[num-x] !== "(" ) { break; } else if(usingSplit[num-x]==="(") { i++; } x++; } if((usingSplit[num-i-1]==="^") && /[a-z`!@#$%^&*_\=\[\]{};'÷:"\\|,<>\/?~]/.test(integer)){ for(let z=0; z<=i; z++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } calMo.value += integer } } else { calMo.value += "" } //a program that checks if the last input is a dot symbol and adds 0 after it whenever a symbol is clicked on except for an opening bracket } else if((/[a-z`!@#$%^&*_+\-=\[\]{};'÷:"\\|,<>\/?~]/.test(integer) && usingSplit[num-1]===".") && (integer !== "(")) { calMo.value += "0" + integer; //a program that prevents multiple inputs of a dot symbol for a number } else if(integer===".") { let dot = 0 for(let i=num-1; i>0; i--) { if(/[a-z `!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?~]/.test(usingSplit[i])) { if(usingSplit[i]===".") { dot++; } break; } } if(dot > 0){ calMo.value += "" //a program that inserts a multiplication symbol if a decimal point is clicked whenever the last input is a closing bracket } else if(usingSplit[num-1]===")") { calMo.value += "x0" + integer; } else if(isNaN(usingSplit[num-1])) { calMo.value += "0" + integer; } else { calMo.value += integer } //a program that detects if the last input is a number or a closing bracket or a decimal or a percentage symbol and predicts the right bracket for the expression } else if((/^[0-9]+$/.test(usingSplit[num-1]) || usingSplit[num-1]===")" || usingSplit[num-1]==="." || usingSplit[num-1]==="%") && (integer==="(")) { if(usingSplit[num-1]===".") { calMo.value += "0" } //a program that generates the right bracket needed for the expression let openB = 0 let closeB = 0 for(;open>=0;) { if(usingSplit[open]==="("){ openB++; } else if(usingSplit[open]===")") { closeB++; } open--; } if(openB === closeB) { calMo.value += "x(" } else if(openB > closeB) { calMo.value += ")"; } //a program that checks if the last input is a symbol and if the new input is also a symbol and then changes it to the new symbol if necessary } else if(/[a-z%^&*+\-=\[\]÷\\|\/?]/.test(usingSplit[num-1]) && integer !== "(") { if((usingSplit[num-4]===integer) && usingSplit[num-1]==="d") { for(let i=0; i<3; i++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } } else if(usingSplit[num-1]==="d") { for(let i=0; i<3; i++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } calMo.value += integer } else if((usingSplit[num-1]==="(" && usingSplit[num-2]) === "^") { for(let i=0; i<2; i++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } calMo.value += integer } else if (usingSplit[num-1]==="%") { if(integer==="%") { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; calMo.value += integer } else { calMo.value += integer } } else if((usingSplit[num-2]==="%") && (integer==="%")){ let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } else { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; calMo.value += integer; } } else { calMo.value += integer } //Assigned to event listener to change the color of the div document.getElementById("Calmo").style.backgroundColor = "#11CF50" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } const symbolI = (integer) => { let calMo = document.getElementById("output"); //a program that checks for integer zero as the first integer without a number greater than zero before it and changes it to the new integer to prevent multiples of zeros if necessary let string = calMo.value let usingSplit = string.split('') let num = 0 for(i in usingSplit) { num++; } if(usingSplit[num-1]==="0") { let x = 0; let y = 0; for(let i=num; i>0; i--) { if(/[ `a-z!@#$%^&*()_+\-=\[\]{};':"\\|,<>\/?~]/.test(usingSplit[i-1])) { break; } else if(usingSplit[i-1]==="0"){ x++; } y++; } if(x===y){ let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; calMo.value += integer } else { calMo.value += integer } //a program that generates a multiplication symbol and the integer if a closing bracket precedes it } else if(usingSplit[num-1]===")") { calMo.value += "x" + integer; } else { calMo.value += integer; } document.getElementById("Calmo").style.backgroundColor = "blue" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } const equals = () => { let calMo = document.getElementById("output"); let string = calMo.value let usingSplit = string.split('') let open = 0 let close = 0 //a variable that holds the mathematical expression right before execution let catchErr = calMo.value //resolves the issue of exponentiation whenever a unary operator is the first input before the number that is being exponentiated x = usingSplit.length if(usingSplit[0]==="-" || usingSplit[0]==="+") { let z = 0 for(let i=1; i\/?~]/.test(usingSplit[i])) { if(usingSplit[i]==="^"){ z++; } break; } } if(z > 0) { usingSplit.splice(i, 0, ")") usingSplit.splice(0, 0, "(") } } //a program that reads the input and generates the right amount of closing bracket(s) needed for the expression before evaluating the expression calMo.value = usingSplit.join("") for(i in usingSplit) { if(usingSplit[i]==="("){ open++; } else if(usingSplit[i]===")"){ close++; } } let bracket = open - close while(bracket > 0) { calMo.value += ")" bracket--; } try { //a program to convert the mathematical symbols to the right way it looks in programming let expression = calMo.value let arr = expression.split('') for(i in arr){ if(arr[i]==="^"){ if(arr[++i]==="(") { arr[--i] = "**"; } } else if(arr[i]==="÷") { arr[i] = "/"; } else if(arr[i]==="x") { arr[i] = "*"; } else if(arr[i]==="%") { arr[i] = "/100"; } else if(arr[i]==="m") { let x = parseInt(i) + 3; let y = parseInt(i) for(; y < x ;) { arr[y] = ""; y++; } arr[i] = "%"; } } calMo.value = arr.join('') //evaluates the operands calMo.value = Function("return " + calMo.value)(); //if an error occurs if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; //catches errors and then triggers an action } catch(err) { alert("An error occured. Please input a valid maths expression.") //reverts the executed code to the mathematical expression before input calMo.value = catchErr } document.getElementById("Calmo").style.backgroundColor = "green" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } const clr = () => { let calMo = document.getElementById("output"); //clears the text in the text box calMo.value = ""; document.getElementById("Calmo").style.backgroundColor = "orange" document.getElementById("Calmo").style.color = "black" } const del = () => { let calMo = document.getElementById("output"); //deletes the last input from the right let string = calMo.value let usingSplit = string.split('') let num = 0 for(i in usingSplit) { num++; } if(usingSplit[num-1]==="(" && usingSplit[num-2]==="^") { for(x=0; x<2; x++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } } else if(usingSplit[num-1]==="d") { for(x=0; x<3; x++) { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } } else { let del = calMo.value.slice(0, --calMo.value.length) calMo.value = del; } document.getElementById("Calmo").style.backgroundColor = "grey" document.getElementById("Calmo").style.color = "black" document.getElementById("output").style.color = "black" } const rnd = () => { let calMo = document.getElementById("output"); try { calMo.value = Math.round(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "orange" document.getElementById("Calmo").style.color = "black" } function sin(){ let calMo = document.getElementById("output"); try { calMo.value = Math.sin(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red"; document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function sqrt(){ let calMo = document.getElementById("output"); try { calMo.value = Math.sqrt(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function cos(){ let calMo = document.getElementById("output"); try { calMo.value = Math.cos(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function cbrt(){ let calMo = document.getElementById("output"); try { calMo.value = Math.cbrt(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function tan(){ let calMo = document.getElementById("output"); try { calMo.value = Math.tan(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function sinH(){ let calMo = document.getElementById("output"); try { calMo.value = Math.sinh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function exp(){ let calMo = document.getElementById("output"); try { calMo.value = Math.exp(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function cosH(){ let calMo = document.getElementById("output"); try { calMo.value = Math.cosh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_two(){ let calMo = document.getElementById("output"); try { calMo.value = Math.log2(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function tanH(){ let calMo = document.getElementById("output"); try { calMo.value = Math.tanh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcSine(){ var calMo = document.getElementById("output"); try { calMo.value = Math.asin(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function pie(){ let calMo = document.getElementById("output"); try { calMo.value = Math.PI; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcCos(){ let calMo = document.getElementById("output"); try { calMo.value = Math.acos(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log(){ let calMo = document.getElementById("output"); try { calMo.value = Math.log(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcTan(){ let calMo = document.getElementById("output"); try { calMo.value = Math.atan(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcSineH(){ var calMo = document.getElementById("output"); try { calMo.value = Math.asinh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcCosH(){ var calMo = document.getElementById("output"); try { calMo.value = Math.acosh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_ten(){ var calMo = document.getElementById("output"); try { calMo.value = Math.log10(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function arcTanH(){ var calMo = document.getElementById("output"); try { calMo.value = Math.atanh(calMo.value); if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_ee(){ let calMo = document.getElementById("output"); try { calMo.value = Math.LOG2E; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_nn(){ let calMo = document.getElementById("output"); try { calMo.value = Math.LN2; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function e(){ let calMo = document.getElementById("output"); try { calMo.value = Math.E; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_n(){ let calMo = document.getElementById("output"); try { calMo.value = Math.LN10; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" } function log_e(){ let calMo = document.getElementById("output"); try { calMo.value = Math.LOG10E; if((isNaN(calMo.value))||(calMo.value == ("undefined"))) throw "error"; } catch(err) { alert("An error occured. Please input a valid maths expression."); calMo.value = ""; } document.getElementById("Calmo").style.backgroundColor = "red" document.getElementById("Calmo").style.color = "white" document.getElementById("output").style.color = "white" }

CalMo