RPN (Reverse Polish Notation) Calculator Tool Code

var lift = 0;

var line = "";

var x = 0;

var y = 0;

var z = 0;

var t = 0;

var arc = 0;

var mem1 = 0;

var mem2 = 0;

var mem3 = 0;

var degmode = 1;

var valpi = 3.14159265358979323846;

var degtorad = valpi / 180;

var radtodeg = 180 / valpi;

function convert()

{if (line != ""){ x = parseFloat(line); line = ""; }

}

function show()

{document.rpncalc.t.value = t;

document.rpncalc.z.value = z;document.rpncalc.y.value = y;

document.rpncalc.x.value = x;

}

function clearall()

{x = y = z = t = mem1 = mem2 = mem3 = 0;line = ""; show();

}

function clx()

{x = 0; line = ""; show(); lift = 0;

}

function clearreg()

{convert();

mem1 = 0; mem2 = 0; mem3 = 0; lift = 1;

}function exchange()

{convert(); var temp = x; x = y; y = temp; show(); lift = 1;

}

function rolldown()

{convert(); var temp = x; x = y; y = z; z = t; t = temp; show(); lift = 1;

}

function rollup()

{convert(); var temp = t; t = z; z = y; y = x; x = temp; show(); lift = 1;

}

function drop()

{y = z; z = t;

}function number1(digit)

{if (lift) enter();lift = 0; line += digit; document.rpncalc.x.value = line;

}

function enter()

{convert(); t = z; z = y; y = x; show();

}

function plus()

{convert(); x = x + y; drop(); show(); lift = 1;

}

function minus()

{convert(); x = y - x; drop(); show(); lift = 1;

}

function times()

{convert(); x = x * y; drop(); show(); lift = 1;

}

function divide()

{convert(); x = y / x; drop(); show(); lift = 1;

}

function squarert()

{convert(); x = Math.sqrt(x); show(); lift = 1;

}

function square()

{convert(); x = x * x; show(); lift = 1;

}

function pie()

{if (lift || (line != "")) enter();convert(); x = Math.PI; show(); lift = 1;

}

function sqrt()

{convert(); x = Math.sqrt(x); show(); lift = 1;

}

function setarc()

{arc = 1;

}

function sine()

{convert();if (arc) x = invtrig(Math.asin(x));else x = Math.sin(pretrig(x));show(); lift = 1; arc = 0;

}

function cosine()

{convert();if (arc) x = invtrig(Math.acos(x));else x = Math.cos(pretrig(x));if ( x < 6.124e-17 ) { x = 0; } // cos 90 = 0show(); lift = 1; arc = 0;

}

function tangent()

{convert();if (arc) x = invtrig(Math.atan(x));else x = Math.tan(pretrig(x));if ( x > 1633e13) { x = 1/0; } // tan 90 = Infinityshow(); lift = 1; arc = 0;

}

function natlog()

{convert(); x = Math.log(x); show(); lift = 1;

}

function expon()

{convert(); x = Math.exp(x); show(); lift = 1;

}

function power()

{convert(); x = Math.pow(y, x); drop(); show(); lift = 1;

}

function recip()

{convert(); x = 1 / x; show(); lift = 1;

}

function changes()

{convert(); x = -x; show(); lift = 1;

}

function store()

{convert();if (x == 1) mem1 = y;if (x == 2) mem2 = y;if (x == 3) mem3 = y;x = y; drop(); show(); lift = 1;

}

function storeadd()

{convert();if (x == 1) mem1 = mem1 + y;if (x == 2) mem2 = mem2 + y;if (x == 3) mem3 = mem3 + y;x = y; drop(); show(); lift = 1;

}

function storeminus()

{convert();if (x == 1) mem1 = mem1 - y;if (x == 2) mem2 = mem2 - y;if (x == 3) mem3 = mem3 - y;x = y; drop(); show(); lift = 1;

}

function recall()

{if (lift || (line != "")) enter();convert(); if (x == 3) x = mem3;if (x == 2) x = mem2;if (x == 1) x = mem1;drop(); show(); lift = 1;

}

function percent()

{convert(); x = x * y / 100; drop(); show(); lift = 1;

}

function clrstack()

{convert(); t = 0; z = 0; y = 0; x = 0; show(); lift = 1;

}

function fdegrad(x)

{degmode = x;

}

function pretrig(x)

{if(degmode) { x *= degtorad; }return(x);

}

function invtrig(x)

{if(degmode) { x *= radtodeg; }return(x);

}

function ffact()

{ convert(); var counter = x; var fct = counter;while(--counter > 0) { fct *= counter; }x = fct; show(); lift = 1;

}

function ctck()

{var sds = document.getElementById("dum");if(sds == null){alert("You are using a free package.\n You are not allowed to remove the tag.\n");}var sdss = document.getElementById("dumdiv");if(sdss == null){alert("You are using a free package.\n You are not allowed to remove the tag.\n");}

}

document.onload="ctck()";

</script>

<center><h2>Javascript RPN Scientific Calculator</h2>

</td></tr>

<tr align="center"><td><input type="button" value="x !" onClick="ffact()"><td colspan="2"><input type="radio" checked name="degrad" onClick="fdegrad(1)">Degrees<td colspan="2"><input type="radio" name="degrad" onClick="fdegrad(0)">Radians

</tr>

</tr>

</tr>

<tr align="center"><td><input type="button" style="width:60px;" value="rup" onClick="rollup()"><td><input type="button" style="width:60px;" value="chs" onClick="changes()"><td><input type="button" style="width:60px;" value="x<>y" onClick="exchange()"><td><input type="button" style="width:60px;" value="x^2" onClick="square()"><td><input type="button" style="width:60px;" value="sqrt" onClick="squarert()">

</tr>

</tr>

</tr>

</tr>

</tr>

</tr>

</table>

</form>

How To Use These Code ?

Just copy these above following code and paste in your blogger or wordpress website post in HTML view.

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RPN (Reverse Polish Notation) Calculator Tool Code

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