Illinois Administrative Code (Last Updated: March 27, 2024) |
TITLE35. ENVIRONMENTAL PROTECTION |
PART302. WATER QUALITY STANDARDS |
SUBPARTF. PROCEDURES FOR DETERMINING WATER QUALITY CRITERIA |
§302.604. Mathematical Abbreviations
Latest version.
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This Subpart uses the following mathematical abbreviations:
exp x
base of the natural logarithm, e, raised to x-power
ln x
natural logarithm of x
log x
logarithm to the base 10 of x
A**B
A raised to the B-power
SUM(x)
summation of the values of x
(Source: Amended at 47 Ill. Reg. 4437, effective March 23, 2023)