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1. y = 1 + x^2

2. g = { 3sin(x) − cos^2(x), x ≤ 0
       { 3√(1 + x^2), x > 0

3. z = { 1 + |x|, x ≤ −1
       { 1 / √(1 + x + x^2), −1 < x < 0
       { 2ln(1 + x^2) + (1 + cos^4(x)) / (2 + x), x ∈ (−1, 0)
       { (1 + x)^(3/2), x ≥ 0

4. Σ (от n=0 до 10) 1/n!

5. ( 1 2 4 )   ( 1 )
   ( 3 7 8 ) × ( 5 )
   ( 5 6 9 )   ( 9 )

6. ∫ (от 0.8 до 0.9) cos(0.8x + 1.2) dx

7. ∫ (от 5 до 3−π) cos(1.5π + 0.5x) dx

8. ( √((a^2 + b^2)^3) + √(c^2 + d^2) ) / ( ((c−d)/a)^2 + 2 ) + c^d / (c+d)^b + c^d / a^(d−1)