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Add randomized examples to demo playground on doc page #106

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Nov 30, 2023
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Add randomized examples to demo playground on doc page #106

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8 changes: 6 additions & 2 deletions docs/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ <h1>Mathup</h1>
<div class="input">
<p><label for="try-input">You write…</label></p>

<textarea id="try-input">bb E[X] = int_(-oo)^oo x f(x) dx</textarea>
<textarea id="try-input">E[X] = int_(-oo)^oo x f(x) dx</textarea>

<div class="options">
<label for="try-decimalmark">Decimal mark</label>
Expand Down Expand Up @@ -1001,7 +1001,7 @@ <h3>Operators</h3>
<li>
<!-- prettier-ignore -->
<use-example>
sum_(n=0)^k a_n = a_0 + a_i + cdots + a_k
sum_(n=0)^k a_n = a_0 + a_1 + cdots + a_k
</use-example>
</li>
<li>
Expand Down Expand Up @@ -1787,6 +1787,10 @@ <h3>Fenced Groups</h3>
</use-example>
</li>

<li>
<use-example> |(Psi(t):) = int Psi(x, t) |(x:) dx </use-example>
</li>

<li>
<!-- prettier-ignore -->
<use-example>
Expand Down
28 changes: 28 additions & 0 deletions docs/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,31 @@ function removePolyfill(outputEl, mathupEl) {
}
}

const DEMO_EQUATIONS = [
"E[X] = int_(-oo)^oo x f(x) dx",
"sum_(n=0)^k a_n = a_0 + a_1 + cdots + a_k",
"e = sum_(n=0)^oo 1 / n!",
"vec x = a hat i + b hat j + c hat k",
"grad f(x,y) = ((del f)/(del x) (x, y), (del f)/(del y)(x,y))",
"oint_(del S) bf F * d bf s = dint_S grad xx bf F * d bf s",
"cc N(x | μ, σ^2) = 1 / (σ sqrt(2π)) e^(-1/2 (x-μ / σ)^2)",
"`Gamma`(theta | alpha, beta) = beta^alpha / Gamma(alpha) theta^(alpha - 1) e^(-beta theta)",
"P(A | B) = P(B | A)P(A) / P(B)",
String.raw`phi =.^\def a/b = a+b / a`,
"binom(n, k) = n! / k!(n-k)!",
"|(Psi(t):) = int Psi(x, t) |(x:) dx",
"<<V(t)^2>> = lim_(T->oo) 1/T int_(-T/2)^(T/2) V(t)^2 dt",
`[λ_0, λ_1, ...;] [p_(0 0), p_(0 1), ...
p_(1 0), p_(1 1), ...
vdots, vdots, ddots]`,
"||(bf x)||^2 = [x_1 ; x_2 ; x_3]*[x_1 ; x_2 ; x_3]",
`n! = { 1, if n=0 or n=1
n(n-1)!, if n > 1`,
"x = -b+-sqrt(b^2 - 4ac) / 2a",
"ln x = int_1^x 1/t dt",
"bf F @ bf G: U sube RR^3 -> RR^2",
];

/**
* @returns {void}
*/
Expand Down Expand Up @@ -138,6 +163,9 @@ function setupPlayground() {
return;
}

tryInput.value =
DEMO_EQUATIONS[Math.floor(Math.random() * DEMO_EQUATIONS.length)];

const tryMathUp = /** @type {MathUpElement} */ (
tryOutput.querySelector("math-up")
);
Expand Down