charasyn · September 24, 2020 18:15
diff --git a/README.md b/README.md
diff --git a/index.html b/index.html
 <!doctype html>
 <html>
    <head>
        <meta charset="utf-8">
        <title>Triangle solver given aspect ratio and hypotenuse length</title>
        <style>
            body {
                font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            }
            label {
                display: block;
                width: auto;
                text-align: right;
            }
            button {
                display: block;
                width: auto;
                margin: auto;
            }
            table {
                border: 1px solid black;
            }
            .inputerror {
                color: red;
            }
            .inputnoerror {
                color: black;
            }
        </style>
    </head>
    <body>
        <p>
            Given a right triangle with aspect ratio Ra : Rb and hypotenuse length C,
            calculate the side lengths A and B.
        </p>
        <p>
            This can help you calculate a screen's width and height. Put the monitor size (ex. 24") as C,
            and the aspect ratio as Ra : Rb (ex. 16:9).
        </p>
        <table>
            <tr><td><label>Ra:</label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_Ra" min="1" value="16"></td></tr>
            <tr><td><label>Rb:</label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_Rb" min="1" value="9"></td></tr>
            <tr><td><label>C: </label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_C"  min="1" value="24"></td></tr>
            <tr><td colspan="2"><button onclick="form_update()">Calculate</button></td></tr>
            <tr><td><label>A: </label></td><td><input type="number" id="output_A" disabled></td></tr>
            <tr><td><label>B: </label></td><td><input type="number" id="output_B" disabled></td></tr>
        </table>
        <script>
            function form_setError(elem, err) {
                elem.className = err ? "inputerror" : "inputnoerror";
            }
            function form_getInputs() {
                const input_Ra = document.getElementById('input_Ra');
                const input_Rb = document.getElementById('input_Rb');
                const input_C = document.getElementById('input_C');
                
                const Ra = parseFloat(input_Ra.value);
                const Rb = parseFloat(input_Rb.value);
                const C = parseFloat(input_C.value);

                let err = false;
                if (isNaN(Ra) || Ra <= 0) { form_setError(input_Ra, true); err = true; } else { form_setError(input_Ra, false); }
                if (isNaN(Rb) || Rb <= 0) { form_setError(input_Rb, true); err = true; } else { form_setError(input_Rb, false); }
                if (isNaN(C)  || C  <= 0) { form_setError(input_C,  true); err = true; } else { form_setError(input_C,  false); }
                if (err) return undefined;

                return {
                    Ra: Ra,
                    Rb: Rb,
                    C:  C,
                };
            }
            function form_setOutputs(vals) {
                const output_A = document.getElementById('output_A');
                const output_B = document.getElementById('output_B');

                let A = "";
                let B = "";
                if (vals) {
                    A = vals.A;
                    B = vals.B;
                }

                output_A.value = A;
                output_B.value = B;
            }
            function form_update() {
                const inputs = form_getInputs();
                if (!inputs) {
                    form_setOutputs(undefined);
                    return;
                }

                const Ra = inputs.Ra;
                const Rb = inputs.Rb;
                const C  = inputs.C;
                const R  = Ra/Rb;

                const B = C * Math.sqrt(1 / (R*R + 1));
                const A = B*R;
                
                form_setOutputs({
                    A: Math.round(A * 1000) / 1000,
                    B: Math.round(B * 1000) / 1000,
                });
            }
            form_update();
        </script>
    </body>
 </html>
diff --git a/LICENSE b/LICENSE
 MIT License

 Copyright (c) 2020 Cooper Harasyn

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
	<!doctype html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Triangle solver given aspect ratio and hypotenuse length</title>
	<style>
	body {
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	}
	label {
	display: block;
	width: auto;
	text-align: right;
	}
	button {
	display: block;
	width: auto;
	margin: auto;
	}
	table {
	border: 1px solid black;
	}
	.inputerror {
	color: red;
	}
	.inputnoerror {
	color: black;
	}
	</style>
	</head>
	<body>
	<p>
	Given a right triangle with aspect ratio Ra : Rb and hypotenuse length C,
	calculate the side lengths A and B.
	</p>
	<p>
	This can help you calculate a screen's width and height. Put the monitor size (ex. 24") as C,
	and the aspect ratio as Ra : Rb (ex. 16:9).
	</p>
	<table>
	<tr><td><label>Ra:</label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_Ra" min="1" value="16"></td></tr>
	<tr><td><label>Rb:</label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_Rb" min="1" value="9"></td></tr>
	<tr><td><label>C: </label></td><td><input type="number" class="inputnoerror" onchange="form_update()" id="input_C" min="1" value="24"></td></tr>
	<tr><td colspan="2"><button onclick="form_update()">Calculate</button></td></tr>
	<tr><td><label>A: </label></td><td><input type="number" id="output_A" disabled></td></tr>
	<tr><td><label>B: </label></td><td><input type="number" id="output_B" disabled></td></tr>
	</table>
	<script>
	function form_setError(elem, err) {
	elem.className = err ? "inputerror" : "inputnoerror";
	}
	function form_getInputs() {
	const input_Ra = document.getElementById('input_Ra');
	const input_Rb = document.getElementById('input_Rb');
	const input_C = document.getElementById('input_C');

	const Ra = parseFloat(input_Ra.value);
	const Rb = parseFloat(input_Rb.value);
	const C = parseFloat(input_C.value);

	let err = false;
	if (isNaN(Ra) \|\| Ra <= 0) { form_setError(input_Ra, true); err = true; } else { form_setError(input_Ra, false); }
	if (isNaN(Rb) \|\| Rb <= 0) { form_setError(input_Rb, true); err = true; } else { form_setError(input_Rb, false); }
	if (isNaN(C) \|\| C <= 0) { form_setError(input_C, true); err = true; } else { form_setError(input_C, false); }
	if (err) return undefined;

	return {
	Ra: Ra,
	Rb: Rb,
	C: C,
	};
	}
	function form_setOutputs(vals) {
	const output_A = document.getElementById('output_A');
	const output_B = document.getElementById('output_B');

	let A = "";
	let B = "";
	if (vals) {
	A = vals.A;
	B = vals.B;
	}

	output_A.value = A;
	output_B.value = B;
	}
	function form_update() {
	const inputs = form_getInputs();
	if (!inputs) {
	form_setOutputs(undefined);
	return;
	}

	const Ra = inputs.Ra;
	const Rb = inputs.Rb;
	const C = inputs.C;
	const R = Ra/Rb;

	const B = C * Math.sqrt(1 / (R*R + 1));
	const A = B*R;

	form_setOutputs({
	A: Math.round(A * 1000) / 1000,
	B: Math.round(B * 1000) / 1000,
	});
	}
	form_update();
	</script>
	</body>
	</html>
	MIT License

	Copyright (c) 2020 Cooper Harasyn

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	SOFTWARE.