z <- c(1.5, 5e-12, 2.33e-03, 8.12e+10, 2)
num2Latex(z) # 1.5, 5 \cdot 10^{-12}, 0.00233, 8.12 \cdot 10^{10}, 2
num2Latex(z, 2) # 1.5, 5 \cdot 10^{-12}, 2.33 \cdot 10^{-3}, 8.12 \cdot 10^{10}, 2
num2Latex(z, -3) # 1.5, 5 \cdot 10^{-12}, 0.00233, 81200000000, 2
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