bc «< ‘80.6175 + 85.7323 + 285.858 + 282.93 + 286.504 + 299.016 + 273.377 + 86.8122 + 89.1654 + 294.879 + 298.645 + 290.461 + 294.925 + 267.496 + 86.5261 + 93.045 + 296.381 + 318.597 + 296.405 + 294.691 + 262.393 + 93.1809 + 93.8425 + 303.229 + 289.122 + 278.149 + 270.249 + 252.264 + 86.8702 + 91.1879 + 270.601’

expr is used to calculate integer numbers, not floats. This would not work: expr 80.6175 + 85.7323 + 285.858 + 282.93 + 286.504 + 299.016 + 273.377 + 86.8122 + 89.1654 + 294.879 + 298.645 + 290.461 + 294.925 + 267.496 + 86.5261 + 93.045 + 296.381 + 318.597 + 296.405 + 294.691 + 262.393 + 93.1809 + 93.8425 + 303.229 + 289.122 + 278.149 + 270.249 + 252.264 + 86.8702 + 91.1879 + 270.601

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