Mathematics
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current location:Mathematical operation > History of Mathematical Computation
    0.9×2.1×19+1.8×2.1×6+1.2×2.1×2+0.7×2.1×10+1.2×1.5×2
    1.2×1.5×35+0.7×2.1×10+1.8×2.1×4
    6.06×27+(1.56+2.4)×18+3.66+3.9+3.36+59.75+40.8+15.6
    6.06×26+(1.56+2.4)×9+3.66+3.9+(1.86+2.4)×1+3.36+59.75+27.9+4.74+15.6
    15+40.5+19.2+15+15.6+3.6+3.6+3.6+19.8+3.6+3.9+3.6+16.8
    10.14×4.14+7.2×6.54
    1/2:1/5
    1/2(1.38×4.08×9+1.38×3.96×8+3.9×2.28×1+1.38×3.48×1)
    1/2(1.38×4.08×7+1.38×3.96×7+3.9×2.28×1+1.38×4.2×1+1.38×3.48×3)
    315:248+6679:6:873:846767
    1/3*(-10/3)-1/3
    1.38×4.08×6+1.38×3.96×3+3.9×2.28×1
    16.8×15.24+4.14×18.84+19.8×15.24+18.84×3.84+15.6×15.24
    lg0.000097
    arctan0.35
    sin90
    297.961368/102.4708219
    (3.25*e^(-0.023590))*1+(3.25*e^(-2*0.023590))*2+(103.25*e^(-3*0.023590))*3
    298.464158/102.4708219
    (3.25*e^(-0.02302))*1+(3.25*e^(-2*0.02302))*2+(103.25*e^(-3*0.02302))*3

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