Scientific

This is a very cool JavaScript calculator that does many advanced functions - cosine, sine, tangent, square root, exponents, etc. Very Cool!

JavaScript Source Code 3000: Calculator: Scientific Calculator Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s). The script is yours!!!

<HEAD>  <SCRIPT LANGUAGE="JavaScript">  <! > <! >   </SCRIPT>    <BODY>  <CENTER> <FORM> <input name="display" value="0" size=25></td> <br> <input type="button" value="   exp  " onClick="if (checkNum(this.form.display.value)) {  exp(this.form) }"> <input type="button" value="    7    " onClick="addChar(this.form.display, '7')"> <input type="button" value="    8    " onClick="addChar(this.form.display, '8')"> <input type="button" value="    9    " onClick="addChar(this.form.display, '9')"> <input type="button" value="    /    " onClick="addChar(this.form.display, '/')"> <br> <input type="button" value="   ln    " onClick="if (checkNum(this.form.display.value)) {  ln(this.form) }"> <input type="button" value="    4    " onClick="addChar(this.form.display, '4')"> <input type="button" value="    5    " onClick="addChar(this.form.display, '5')"> <input type="button" value="    6    " onClick="addChar(this.form.display, '6')"> <input type="button" value="    *    " onClick="addChar(this.form.display, '*')"> <br> <input type="button" value="   sqrt  " onClick="if (checkNum(this.form.display.value)) { sqrt(this.form) }"> <input type="button" value="    1    " onClick="addChar(this.form.display, '1')"> <input type="button" value="    2    " onClick="addChar(this.form.display, '2')"> <input type="button" value="    3    "  onClick="addChar(this.form.display, '3')"> <input type="button" value="    -    "  onClick="addChar(this.form.display, '-')"> <br> <input type="button" value="   sq    " onClick="if (checkNum(this.form.display.value)) {  square(this.form) }"> <input type="button" value="    0    " onClick="addChar(this.form.display, '0')">  <input type="button" value="    .    " onClick="addChar(this.form.display, '.')">  <input type="button" value="   +/-   " onClick="changeSign(this.form.display)"> <input type="button" value="    +    " onClick="addChar(this.form.display, '+')"> <br> <input type="button" value="    (    " onClick="addChar(this.form.display, '(')">  <input type="button" value="   cos   " onClick="if (checkNum(this.form.display.value)) {  cos(this.form) }"> <input type="button" value="   sin   " onClick="if (checkNum(this.form.display.value)) { sin(this.form) }"> <input type="button" value="   tan   " onClick="if (checkNum(this.form.display.value)) {  tan(this.form) }"> <input type="button" value="    )    " onClick="addChar(this.form.display, ')')">  <br> <input type="button" value="   Clear       "  onClick="this.form.display.value = 0 "> <input type="button" value="   Back Space  " onClick="deleteChar(this.form.display)"> <input type="button" value="   Enter       " name="enter" onClick="if (checkNum(this.form.display.value)) {  compute(this.form) }"> </FORM> </CENTER>

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