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Main » Files » Article » Ilmu Komputer

Script
2009-10-14, 3:42 PM

CALCULATORS

Paste this Code between "<head" and "</head>"


<SCRIPT LANGUAGE="JavaScript">

function addChar(input, character) {

                if(input.value == null || input.value == "0")

                                input.value = character

                else

                                input.value += character

}

 function cos(form) {

                form.display.value = Math.cos(form.display.value);

}

 function sin(form) {

                form.display.value = Math.sin(form.display.value);

}

 function tan(form) {

                form.display.value = Math.tan(form.display.value);

}

 function sqrt(form) {

                form.display.value = Math.sqrt(form.display.value);

}

 function ln(form) {

                form.display.value = Math.log(form.display.value);

}

 function exp(form) {

                form.display.value = Math.exp(form.display.value);

}

 function deleteChar(input) {

                input.value = input.value.substring(0, input.value.length - 1)

}

 function changeSign(input) {

                if(input.value.substring(0, 1) == "-")

                                input.value = input.value.substring(1, input.value.length)

                else

                                input.value = "-" + input.value

}

 function compute(form) {

                form.display.value = eval(form.display.value)

}

 function square(form) {

                form.display.value = eval(form.display.value) * eval(form.display.value)

}

 function checkNum(str) {

                for (var i = 0; i < str.length; i++) {

                                var ch = str.substring(i, i+1)

                                if (ch < "0" || ch > "9") {

                                                if (ch != "/" && ch != "*" && ch != "+" && ch != "-" && ch != "."

                                                                && ch != "(" && ch!= ")") {

                                                                alert("invalid entry!")

                                                                return false

                                                                }

                                                }

                                }

                                return true

}

</SCRIPT>

Category: Ilmu Komputer | Added by: YahyaOteda
Views: 300 | Downloads: 0 | Rating: 0.0/0
Total comments: 0
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