Element - ∆² - Perfect Square? / Square Expression

Characters: ∆, ²

Description

Is the number a perfect square? (1, 4, 9, 16, 25, 36) / Raise an algebraic expression to the power of 2

Overloads

• num - is_perfect_square(a)
• str - expr ** 2

Examples

• 1 ∆² = 1
• 4 ∆² = 1
• 9 ∆² = 1
• 16 ∆² = 1
• 25 ∆² = 1
• 36 ∆² = 1
• 0 ∆² = 1
• `3x` ∆² = `9*x**2`
• `2x + 3y - 1` ∆² = `4*x**2 + 12*x*y - 4*x + 9*y**2 - 6*y + 1`
• `630` ∆² = `396900`