25 wt% twenty five weight percent 150 oC one fifty degree C 1/2 one half 1/3 one third 2/3 two thirds 4/5 four fifths/ four over five 1.23 one point two three 0.01 zero point zero one 2.X two point something = is equal to / equals > is larger than < is less than >> is much greater than a = b + c a is equal to b plus c a = b - c a is equal to b minus c a = b x c a is equal to b times c / a is equal to b multiplied by c a = b/c a is equal to b divided by c / a is equal to b over c x2 x square / x to the second power / x to the power two x3 x cube / x to the third power / x to the power three lognX log x to the base n a* a star a’ a prime a’’ a double prime // is parallel to
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