libjs-asciimathml 2.0.2-1 / usr / share / javascript / asciimathtml / ASCIIMathML.min.js

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h=document.getElementById(g+"input");h.style.display=(h.style.display=="none"?"":"none");var h=document.getElementById(g+"button");h.style.display=(h.style.display=="none"?"":"none")}function showcode(){}function setBorder(f){border=f}function initPicture(m,k,h,f){if(!initialized){setdefaults();initialized=true;if(m!=null){xmin=m}if(k!=null){xmax=k}if(h!=null){ymin=h}if(f!=null){ymax=f}if(xmin==null){xmin=defaultxmin}if(xmax==null){xmax=defaultxmax}if(typeof xmin!="number"||typeof xmax!="number"||xmin>=xmax){alert("Picture requires at least two numbers: xmin < xmax")}else{if(f!=null&&(typeof h!="number"||typeof f!="number"||h>=f)){alert("initPicture(xmin,xmax,ymin,ymax) requires numbers ymin < 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l=document.getElementById(picture.getAttribute("id")+"mml");if(l!=null){while(l.childNodes.length>0){l.removeChild(l.lastChild)}}}else{var g=document.createElementNS("http://www.w3.org/2000/svg","svg");g.setAttribute("id",picture.getAttribute("id"));g.setAttribute("name",picture.getAttribute("id"));g.setAttribute("style","display:inline");g.setAttribute("width",picture.getAttribute("width"));g.setAttribute("height",picture.getAttribute("height"));picturepos=findPos(picture);g.setAttribute("left",picturepos[0]);g.setAttribute("top",picturepos[1]);if(picture.parentNode!=null){picture.parentNode.replaceChild(g,picture)}else{svgpicture.parentNode.replaceChild(g,svgpicture)}svgpicture=g;doc=document}svgpicture.setAttribute("xunitlength",xunitlength);svgpicture.setAttribute("yunitlength",yunitlength);svgpicture.setAttribute("xmin",xmin);svgpicture.setAttribute("xmax",xmax);svgpicture.setAttribute("ymin",ymin);svgpicture.setAttribute("ymax",ymax);svgpicture.setAttribute("ox",origin[0]);svgpicture.setAttribute("oy",origin[1]);var j=myCreateElementSVG("rect");j.setAttribute("x","0");j.setAttribute("y","0");j.setAttribute("width",width);j.setAttribute("height",height);j.setAttribute("style",backgroundstyle);svgpicture.appendChild(j);svgpicture.setAttribute("onmousemove","displayCoord(evt)");svgpicture.setAttribute("onmouseout","removeCoord(evt)");svgpicture.setAttribute("onclick","mClick(evt)");j=myCreateElementSVG("text");j.appendChild(doc.createTextNode(" "));svgpicture.appendChild(j);border=defaultborder}}}}function line(j,h,k,g){var f;if(k!=null){f=doc.getElementById(k)}if(f==null){f=myCreateElementSVG("path");f.setAttribute("id",k);svgpicture.appendChild(f)}f.setAttribute("d","M"+(j[0]*xunitlength+origin[0])+","+(height-j[1]*yunitlength-origin[1])+" 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h;if(j!=null){h=doc.getElementById(j)}if(h==null){h=myCreateElementSVG("circle");h.setAttribute("id",j);svgpicture.appendChild(h)}h.setAttribute("cx",g[0]*xunitlength+origin[0]);h.setAttribute("cy",height-g[1]*yunitlength-origin[1]);h.setAttribute("r",f*xunitlength);h.setAttribute("stroke-width",strokewidth);h.setAttribute("stroke",stroke);h.setAttribute("fill",fill);h.setAttribute("stroke-opacity",strokeopacity);h.setAttribute("fill-opacity",fillopacity)}function loop(f,g,h){if(g==null){g=[1,0]}path([f,[f[0]+g[0],f[1]+g[1]],[f[0]-g[1],f[1]+g[0]],f],h,"C");if(marker=="arrow"||marker=="arrowdot"){arrowhead([f[0]+Math.cos(1.4)*g[0]-Math.sin(1.4)*g[1],f[1]+Math.sin(1.4)*g[0]+Math.cos(1.4)*g[1]],f)}}function arc(l,g,f,k){var j,h;if(k!=null){j=doc.getElementById(k)}if(f==null){h=[g[0]-l[0],g[1]-l[1]];f=Math.sqrt(h[0]*h[0]+h[1]*h[1])}if(j==null){j=myCreateElementSVG("path");j.setAttribute("id",k);svgpicture.appendChild(j)}j.setAttribute("d","M"+(l[0]*xunitlength+origin[0])+","+(height-l[1]*yunitlength-origin[1])+" A"+f*xunitlength+","+f*yunitlength+" 0 0,0 "+(g[0]*xunitlength+origin[0])+","+(height-g[1]*yunitlength-origin[1]));j.setAttribute("stroke-width",strokewidth);j.setAttribute("stroke",stroke);j.setAttribute("fill",fill);j.setAttribute("stroke-opacity",strokeopacity);j.setAttribute("fill-opacity",fillopacity);if(marker=="arrow"||marker=="arrowdot"){u=[(g[1]-l[1])/4,(l[0]-g[0])/4];h=[(g[0]-l[0])/2,(g[1]-l[1])/2];h=[l[0]+h[0]+u[0],l[1]+h[1]+u[1]]}else{h=[l[0],l[1]]}if(marker=="dot"||marker=="arrowdot"){ASdot(l,markersize,markerstroke,markerfill);if(marker=="arrowdot"){arrowhead(h,g)}ASdot(g,markersize,markerstroke,markerfill)}else{if(marker=="arrow"){arrowhead(h,g)}}}function sector(f,l,g,k){var j=l[0]-f[0],h=l[1]-f[1];arc(l,g,Math.sqrt(j*j+h*h),k+"arc");path([g,f,l],k+"path")}function ellipse(f,j,h,k){var g;if(k!=null){g=doc.getElementById(k)}if(g==null){g=myCreateElementSVG("ellipse");g.setAttribute("id",k);svgpicture.appendChild(g)}g.setAttribute("cx",f[0]*xunitlength+origin[0]);g.setAttribute("cy",height-f[1]*yunitlength-origin[1]);g.setAttribute("rx",j*xunitlength);g.setAttribute("ry",h*yunitlength);g.setAttribute("stroke-width",strokewidth);g.setAttribute("stroke",stroke);g.setAttribute("fill",fill);g.setAttribute("stroke-opacity",strokeopacity);g.setAttribute("fill-opacity",fillopacity)}function triangle(h,g,f,j){path([h,g,f,h],j)}function rect(k,h,l,j,g){var f;if(l!=null){f=doc.getElementById(l)}if(f==null){f=myCreateElementSVG("rect");f.setAttribute("id",l);svgpicture.appendChild(f)}f.setAttribute("x",k[0]*xunitlength+origin[0]);f.setAttribute("y",height-h[1]*yunitlength-origin[1]);f.setAttribute("width",(h[0]-k[0])*xunitlength);f.setAttribute("height",(h[1]-k[1])*yunitlength);if(j!=null){f.setAttribute("rx",j*xunitlength)}if(g!=null){f.setAttribute("ry",g*yunitlength)}f.setAttribute("stroke-width",strokewidth);f.setAttribute("stroke",stroke);f.setAttribute("fill",fill);f.setAttribute("stroke-opacity",strokeopacity);f.setAttribute("fill-opacity",fillopacity)}function text(g,q,l,f,m){var k,j,r=0,o=fontsize/3;if(/(`|\$)/.test(q)){k=document.getElementById(svgpicture.getAttribute("name")+"mml");if(k!=null){if(f!=null){j=document.getElementById(f)}if(j==null){j=myCreateElementXHTML("div");j.setAttribute("id",f);j.style.position="absolute";k.appendChild(j)}while(j.childNodes.length>0){j.removeChild(j.lastChild)}j.appendChild(document.createTextNode(q));j.style.left=""+(g[0]*xunitlength+origin[0])+"px";j.style.top=""+(height-g[1]*yunitlength-origin[1])+"px";if(/`/.test(q)){AMprocessNode(j)}else{LMprocessNode(j)}r=-j.offsetWidth/2;o=-j.offsetHeight/2;if(l!=null){if(/above/.test(l)){o=-j.offsetHeight}if(/below/.test(l)){o=0}if(/right/.test(l)){r=0}if(/left/.test(l)){r=-j.offsetWidth}}j.style.left=""+(g[0]*xunitlength+origin[0]+r)+"px";j.style.top=""+(height-g[1]*yunitlength-origin[1]+o)+"px"}return g}var h="middle";if(l!=null){if(/above/.test(l)){o=-fontsize/2}if(/below/.test(l)){o=fontsize-0}if(/right/.test(l)){h="start";r=fontsize/4}if(/left/.test(l)){h="end";r=-fontsize/4}}if(f!=null){j=doc.getElementById(f)}if(j==null){j=myCreateElementSVG("text");j.setAttribute("id",f);svgpicture.appendChild(j);j.appendChild(doc.createTextNode(q))}while(j.childNodes.length>1){j.removeChild(j.lastChild)}j.lastChild.nodeValue="\xA0"+q+"\xA0";j.setAttribute("x",g[0]*xunitlength+origin[0]+r);j.setAttribute("y",height-g[1]*yunitlength-origin[1]+o);j.setAttribute("font-style",(m!=null?m:(q.search(/^[a-zA-Z]$/)!=-1?"italic":fontstyle)));j.setAttribute("font-family",fontfamily);j.setAttribute("font-size",fontsize);j.setAttribute("font-weight",fontweight);j.setAttribute("text-anchor",h);if(fontstroke!="none"){j.setAttribute("stroke",fontstroke)}if(fontfill!="none"){j.setAttribute("fill",fontfill)}return g}function mtext(l,h,o,m){var j="middle";var g=0;var f=fontsize/3;if(o!=null){if(o.slice(0,5)=="above"){f=-fontsize/2}if(o.slice(0,5)=="below"){f=fontsize-0}if(o.slice(0,5)=="right"||o.slice(5,10)=="right"){j="start";g=fontsize/2}if(o.slice(0,4)=="left"||o.slice(5,9)=="left"){j="end";g=-fontsize/2}}var k=this;if(this.nodeName=="svg"){k=myCreateElementSVG("text");this.appendChild(k);k.appendChild(doc.createTextNode(h))}k.lastChild.nodeValue=h;k.setAttribute("x",l[0]+g);k.setAttribute("y",l[1]+f);k.setAttribute("font-style",(m!=null?m:fontstyle));k.setAttribute("font-family",fontfamily);k.setAttribute("font-size",fontsize);k.setAttribute("font-weight",fontweight);k.setAttribute("text-anchor",j);if(fontstroke!="none"){k.setAttribute("stroke",fontstroke)}if(fontfill!="none"){k.setAttribute("fill",fontfill)}}function image(g,l,f,j,m){var k;if(m!=null){k=doc.getElementById(m)}if(k==null){k=myCreateElementSVG("image");k.setAttribute("id",m);svgpicture.appendChild(k)}k.setAttribute("x",l[0]*xunitlength+origin[0]);k.setAttribute("y",height-l[1]*yunitlength-origin[1]);k.setAttribute("width",f);k.setAttribute("height",j);k.setAttribute("xlink:href",g)}function ASdot(h,g,j,l){if(j==null){j=stroke}if(l==null){l=fill}var k=myCreateElementSVG("circle");k.setAttribute("cx",h[0]*xunitlength+origin[0]);k.setAttribute("cy",height-h[1]*yunitlength-origin[1]);k.setAttribute("r",g);k.setAttribute("stroke-width",strokewidth);k.setAttribute("stroke",j);k.setAttribute("fill",l);svgpicture.appendChild(k)}function dot(g,k,h,o,m){var j;var f=g[0]*xunitlength+origin[0];var l=height-g[1]*yunitlength-origin[1];if(m!=null){j=doc.getElementById(m)}if(k=="+"||k=="-"||k=="|"){if(j==null){j=myCreateElementSVG("path");j.setAttribute("id",m);svgpicture.appendChild(j)}if(k=="+"){j.setAttribute("d"," M "+(f-ticklength)+" "+l+" L "+(f+ticklength)+" "+l+" M "+f+" "+(l-ticklength)+" L "+f+" "+(l+ticklength));j.setAttribute("stroke-width",0.5);j.setAttribute("stroke",axesstroke)}else{if(k=="-"){j.setAttribute("d"," M "+(f-ticklength)+" "+l+" L "+(f+ticklength)+" "+l)}else{j.setAttribute("d"," M "+f+" "+(l-ticklength)+" L "+f+" "+(l+ticklength))}j.setAttribute("stroke-width",strokewidth);j.setAttribute("stroke",stroke)}}else{if(j==null){j=myCreateElementSVG("circle");j.setAttribute("id",m);svgpicture.appendChild(j)}j.setAttribute("cx",f);j.setAttribute("cy",l);j.setAttribute("r",dotradius);j.setAttribute("stroke-width",strokewidth);j.setAttribute("stroke",stroke);j.setAttribute("fill",(k=="open"?"white":(k=="closed"?stroke:markerfill)))}if(h!=null){text(g,h,(o==null?"below":o),(m==null?m:m+"label"))}}point=dot;function arrowhead(m,l){var f;var h=[m[0]*xunitlength+origin[0],height-m[1]*yunitlength-origin[1]];var g=[l[0]*xunitlength+origin[0],height-l[1]*yunitlength-origin[1]];var j=[g[0]-h[0],g[1]-h[1]];var o=Math.sqrt(j[0]*j[0]+j[1]*j[1]);if(o>1e-8){j=[j[0]/o,j[1]/o];f=[-j[1],j[0]];var k=myCreateElementSVG("path");k.setAttribute("d","M "+(g[0]-15*j[0]-4*f[0])+" "+(g[1]-15*j[1]-4*f[1])+" L "+(g[0]-3*j[0])+" "+(g[1]-3*j[1])+" L "+(g[0]-15*j[0]+4*f[0])+" "+(g[1]-15*j[1]+4*f[1])+" z");k.setAttribute("stroke-width",markerstrokewidth);k.setAttribute("stroke",stroke);k.setAttribute("fill",stroke);k.setAttribute("stroke-opacity",strokeopacity);k.setAttribute("fill-opacity",fillopacity);svgpicture.appendChild(k)}}function chopZ(g){var f=g.indexOf(".");if(f==-1){return g}for(var h=g.length-1;h>f&&g.charAt(h)=="0";h--){}if(h==f){h--}return g.slice(0,h+1)}function grid(g,f){axes(g,f,null,g,f)}function noaxes(){if(!initialized){initPicture()}}function axes(dx,dy,labels,gdx,gdy){var x,y,ldx,ldy,lx,ly,lxp,lyp,pnode,st;if(!initialized){initPicture()}if(typeof dx=="string"){labels=dx;dx=null}if(typeof dy=="string"){gdx=dy;dy=null}if(xscl!=null){dx=xscl;gdx=xscl;labels=dx}if(yscl!=null){dy=yscl;gdy=yscl}if(xtick!=null){dx=xtick}if(ytick!=null){dy=ytick}dx=(dx==null?xunitlength:dx*xunitlength);dy=(dy==null?dx:dy*yunitlength);fontsize=Math.min(dx/2,dy/2,16);ticklength=fontsize/4;if(xgrid!=null){gdx=xgrid}if(ygrid!=null){gdy=ygrid}if(gdx!=null){gdx=(typeof gdx=="string"?dx:gdx*xunitlength);gdy=(gdy==null?dy:gdy*yunitlength);pnode=myCreateElementSVG("path");st="";for(x=origin[0];x<width;x=x+gdx){st+=" M"+x+",0 "+x+","+height}for(x=origin[0]-gdx;x>0;x=x-gdx){st+=" M"+x+",0 "+x+","+height}for(y=height-origin[1];y<height;y=y+gdy){st+=" M0,"+y+" "+width+","+y}for(y=height-origin[1]-gdy;y>0;y=y-gdy){st+=" M0,"+y+" "+width+","+y}pnode.setAttribute("d",st);pnode.setAttribute("stroke-width",0.5);pnode.setAttribute("stroke",gridstroke);pnode.setAttribute("fill",fill);svgpicture.appendChild(pnode)}pnode=myCreateElementSVG("path");st="M0,"+(height-origin[1])+" "+width+","+(height-origin[1])+" M"+origin[0]+",0 "+origin[0]+","+height;for(x=origin[0]+dx;x<width;x=x+dx){st+=" M"+x+","+(height-origin[1]+ticklength)+" "+x+","+(height-origin[1]-ticklength)}for(x=origin[0]-dx;x>0;x=x-dx){st+=" M"+x+","+(height-origin[1]+ticklength)+" "+x+","+(height-origin[1]-ticklength)}for(y=height-origin[1]+dy;y<height;y=y+dy){st+=" M"+(origin[0]+ticklength)+","+y+" "+(origin[0]-ticklength)+","+y}for(y=height-origin[1]-dy;y>0;y=y-dy){st+=" M"+(origin[0]+ticklength)+","+y+" "+(origin[0]-ticklength)+","+y}if(labels!=null){with(Math){ldx=dx/xunitlength;ldy=dy/yunitlength;lx=(xmin>0||xmax<0?xmin:0);ly=(ymin>0||ymax<0?ymin:0);lxp=(ly==0?"below":"above");lyp=(lx==0?"left":"right");var ddx=floor(1.1-log(ldx)/log(10))+1;var ddy=floor(1.1-log(ldy)/log(10))+1;for(x=ldx;x<=xmax;x=x+ldx){text([x,ly],chopZ(x.toFixed(ddx)),lxp)}for(x=-ldx;xmin<=x;x=x-ldx){text([x,ly],chopZ(x.toFixed(ddx)),lxp)}for(y=ldy;y<=ymax;y=y+ldy){text([lx,y],chopZ(y.toFixed(ddy)),lyp)}for(y=-ldy;ymin<=y;y=y-ldy){text([lx,y],chopZ(y.toFixed(ddy)),lyp)}}}fontsize=defaultfontsize;pnode.setAttribute("d",st);pnode.setAttribute("stroke-width",0.5);pnode.setAttribute("stroke",axesstroke);pnode.setAttribute("fill",fill);pnode.setAttribute("stroke-opacity",strokeopacity);pnode.setAttribute("fill-opacity",fillopacity);svgpicture.appendChild(pnode)}function mathjs(h){h=h.replace(/\s/g,"");if(h.indexOf("^-1")!=-1){h=h.replace(/sin\^-1/g,"arcsin");h=h.replace(/cos\^-1/g,"arccos");h=h.replace(/tan\^-1/g,"arctan");h=h.replace(/sec\^-1/g,"arcsec");h=h.replace(/csc\^-1/g,"arccsc");h=h.replace(/cot\^-1/g,"arccot");h=h.replace(/sinh\^-1/g,"arcsinh");h=h.replace(/cosh\^-1/g,"arccosh");h=h.replace(/tanh\^-1/g,"arctanh");h=h.replace(/sech\^-1/g,"arcsech");h=h.replace(/csch\^-1/g,"arccsch");h=h.replace(/coth\^-1/g,"arccoth")}h=h.replace(/^e$/g,"(Math.E)");h=h.replace(/^e([^a-zA-Z])/g,"(Math.E)$1");h=h.replace(/([^a-zA-Z])e/g,"$1(Math.E)");h=h.replace(/([0-9])([\(a-zA-Z])/g,"$1*$2");h=h.replace(/\)([\(0-9a-zA-Z])/g,")*$1");var l,g,f,m,o;while((l=h.indexOf("^"))!=-1){if(l==0){return"Error: missing argument"}g=l-1;m=h.charAt(g);if(m>="0"&&m<="9"){g--;while(g>=0&&(m=h.charAt(g))>="0"&&m<="9"){g--}if(m=="."){g--;while(g>=0&&(m=h.charAt(g))>="0"&&m<="9"){g--}}}else{if(m==")"){o=1;g--;while(g>=0&&o>0){m=h.charAt(g);if(m=="("){o--}else{if(m==")"){o++}}g--}while(g>=0&&(m=h.charAt(g))>="a"&&m<="z"||m>="A"&&m<="Z"){g--}}else{if(m>="a"&&m<="z"||m>="A"&&m<="Z"){g--;while(g>=0&&(m=h.charAt(g))>="a"&&m<="z"||m>="A"&&m<="Z"){g--}}else{return"Error: incorrect syntax in "+h+" at position "+g}}}if(l==h.length-1){return"Error: missing argument"}f=l+1;m=h.charAt(f);if(m>="0"&&m<="9"||m=="-"){f++;while(f<h.length&&(m=h.charAt(f))>="0"&&m<="9"){f++}if(m=="."){f++;while(f<h.length&&(m=h.charAt(f))>="0"&&m<="9"){f++}}}else{if(m=="("){o=1;f++;while(f<h.length&&o>0){m=h.charAt(f);if(m=="("){o++}else{if(m==")"){o--}}f++}}else{if(m>="a"&&m<="z"||m>="A"&&m<="Z"){f++;while(f<h.length&&(m=h.charAt(f))>="a"&&m<="z"||m>="A"&&m<="Z"){f++}}else{return"Error: incorrect syntax in "+h+" at position "+f}}}h=h.slice(0,g+1)+"Math.pow("+h.slice(g+1,l)+","+h.slice(l+1,f)+")"+h.slice(f)}while((l=h.indexOf("!"))!=-1){if(l==0){return"Error: missing argument"}g=l-1;m=h.charAt(g);if(m>="0"&&m<="9"){g--;while(g>=0&&(m=h.charAt(g))>="0"&&m<="9"){g--}if(m=="."){g--;while(g>=0&&(m=h.charAt(g))>="0"&&m<="9"){g--}}}else{if(m==")"){o=1;g--;while(g>=0&&o>0){m=h.charAt(g);if(m=="("){o--}else{if(m==")"){o++}}g--}while(g>=0&&(m=h.charAt(g))>="a"&&m<="z"||m>="A"&&m<="Z"){g--}}else{if(m>="a"&&m<="z"||m>="A"&&m<="Z"){g--;while(g>=0&&(m=h.charAt(g))>="a"&&m<="z"||m>="A"&&m<="Z"){g--}}else{return"Error: incorrect syntax in "+h+" at position "+g}}}h=h.slice(0,g+1)+"factorial("+h.slice(g+1,l)+")"+h.slice(l+1)}return h}function plot(fun,x_min,x_max,points,id,endpts){var pth=[];var f=function(x){return x},g=fun;var name=null;if(typeof fun=="string"){eval("g = function(x){ with(Math) return "+mathjs(fun)+" }")}else{if(typeof fun=="object"){eval("f = function(t){ with(Math) return "+mathjs(fun[0])+" }");eval("g 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displayCoord(g){if(showcoordinates){var j=g.target.parentNode;var f=j.childNodes;for(var h=0;h<f.length&&f.item(h).nodeName!="text";h++){}var k=f.item(h);k.mtext=mtext;k.mtext([j.getAttribute("width")-0,j.getAttribute("height")-0],"("+getX(g).toFixed(2)+", "+getY(g).toFixed(2)+")","aboveleft","")}}function removeCoord(g){var j=g.target.parentNode;var f=j.childNodes;for(var h=0;h<f.length&&f.item(h).nodeName!="text";h++){}var k=f.item(h);k.mtext=mtext;k.mtext([j.getAttribute("width")-0,j.getAttribute("height")-0],"","aboveleft","")}function initASCIIMathCalculators(li){var i;for(i=0;i<li.length;i++){li[i].innerHTML=calcstr;AMprocessNode(li[i])}li=document.getElementsByTagName("textarea");var st;for(i=0;i<li.length;i++){st=li[i].getAttribute("onkeyup");if(st!=null){eval(String(st).replace(/function anonymous\(\)/,""))}}}function calculate(inputId,outputId){var str=document.getElementById(inputId).value;var err="";var ind=str.lastIndexOf("\n");if(ind==str.length-1){str=str.slice(0,ind)}str=str.slice(str.lastIndexOf("\n")+1);try{var res=eval(mathjs(str))}catch(e){err="syntax incomplete"}if(!isNaN(res)&&res!="Infinity"){str="`"+str+" =` "+(Math.abs(res-Math.round(res*1000000)/1000000)<1e-15?Math.round(res*1000000)/1000000:res)+err}else{if(str!=""){str="`"+str+"` = undefined"}}var outnode=document.getElementById(outputId);var n=outnode.childNodes.length;for(var i=0;i<n;i++){outnode.removeChild(outnode.firstChild)}outnode.appendChild(document.createTextNode(str));AMprocessNode(outnode)}function append(f){document.getElementById("in").value+=f;calculate("in","out");document.getElementById("in").scrollTop=1000;document.getElementById("in").focus()}function clearTextArea(){document.getElementById("in").value="";calculate("in","out");document.getElementById("in").focus()}var calcstr='<table align="center">\n<tr><th>\nASCIIMath Scientific Calculator\n</th></tr>\n<tr><td>\nClick in the box to use your keyboard or use the buttons\n</td></tr>\n<tr><td>\n<textarea id="in" rows="3" cols="40" onkeyup="calculate(\'in\',\'out\')"></textarea></td></tr>\n<tr><td height="50">Result: &nbsp; &nbsp; <span id="out"></span></td></tr>\n</table>\n<table align="center" cellspacing="0" cellpadding="0">\n<tbody align="center">\n<tr>\n<td colspan="4">\n<button onclick="append(\'sin^-1(\')"><font size=2>`sin^-1`</font></button><button onclick="append(\'cos^-1(\')"><font size=2>`cos^-1`</font></button><button onclick="append(\'tan^-1(\')"><font size=2>`tan^-1`</font></button></td>\n<td><button onclick="clearTextArea()">&nbsp;`C`&nbsp;</button></td>\n\n</tr>\n<tr>\n<td><button onclick="append(\'pi\')">&nbsp;`pi` &nbsp;</button></td>\n<td><button onclick="append(\'sin(\')">&nbsp;`sin`</button></td>\n<td><button onclick="append(\'cos(\')">&nbsp;`cos`</button></td>\n<td><button onclick="append(\'tan(\')">&nbsp;`tan`</button></td>\n<td><button onclick="append(\'^\')">`x^y`</button></td>\n</tr>\n<tr>\n<td><button onclick="append(\'!\')">&nbsp; `!` &nbsp;</button></td>\n\n<td><button onclick="append(\'(\')"><font size=2>&nbsp;&nbsp;`(`&nbsp;&nbsp;</font></button></td>\n<td><button onclick="append(\')\')"><font size=2>&nbsp;&nbsp;`)`&nbsp;&nbsp;</font></button></td>\n<td><button onclick="append(\'sqrt(\')"><font size=2>`sqrt({::}^ )`</font></button></td>\n<td><button onclick="append(\'/\')">&nbsp;`-: `</button></td>\n</tr>\n<tr>\n<td><button onclick="append(\'log(\')">`log`</button></td>\n<td><button onclick="append(\'7\')">&nbsp; `7` &nbsp;</button></td>\n<td><button onclick="append(\'8\')">&nbsp; `8` &nbsp;</button></td>\n\n<td><button onclick="append(\'9\')">&nbsp; `9` &nbsp;</button></td>\n<td><button onclick="append(\'*\')">&nbsp;`times`&nbsp;</button></td>\n</tr>\n<tr>\n<td><button onclick="append(\'ln(\')">&nbsp;`ln`&nbsp;</button></td>\n<td><button onclick="append(\'4\')">&nbsp; `4` &nbsp;</button></td>\n<td><button onclick="append(\'5\')">&nbsp; `5` &nbsp;</button></td>\n<td><button onclick="append(\'6\')">&nbsp; `6` &nbsp;</button></td>\n\n<td><button onclick="append(\'-\')">&nbsp;`-{::}`&nbsp;</button></td>\n</tr>\n<tr>\n<td><button onclick="append(\'e\')">&nbsp; `e` &nbsp;</button></td>\n<td><button onclick="append(\'1\')">&nbsp;&nbsp;`1` &nbsp;</button></td>\n<td><button onclick="append(\'2\')">&nbsp; `2` &nbsp;</button></td>\n<td><button onclick="append(\'3\')">&nbsp; `3` &nbsp;</button></td>\n<td><button onclick="append(\'+\')">&nbsp;`+{::}`&nbsp;</button></td>\n\n</tr>\n<tr>\n<td> <!--button onclick="append(\'pi\')">&nbsp;`pi` &nbsp;</button--></td>\n<td><button onclick="append(\'0\')">&nbsp; `0` &nbsp;</button></td>\n<td><button onclick="append(\'.\')">&nbsp; `.` &nbsp;</button></td>\n<td><button onclick="append(\'\\n\')">&nbsp;`"ent"`</button></td>\n</tr>\n</tbody>\n</table>';function generic(){if(translateOnLoad){var 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