2 + 2 = 4
5 × 3 = 15
a² + b² = c²
∫ f(x)dx
y = mx + b
E = mc²
sin²θ + cos²θ = 1
12 ÷ 3 = 4
π
e
φ
∞
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Δ
α
β
γ
θ
λ
μ
2
3
5
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11
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37
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1
4
9
16
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36
49
64
81
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144
169
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