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Since 10 is greater than 9, the pigeonhole principle says that at least one hole has more than one pigeon. (The top left hole has 2 pigeons.) In mathematics , the pigeonhole principle states that if n items are put into m containers, with n > m , then at least one container must contain more than one item. [ 1 ]
In mathematical writing, the greater-than sign is typically placed between two values being compared and signifies that the first number is greater than the second number. Examples of typical usage include 1.5 > 1 and 1 > −2. The less-than sign and greater-than sign always "point" to the smaller number.
Positive numbers: Real numbers that are greater than zero. Negative numbers: Real numbers that are less than zero. Because zero itself has no sign, neither the positive numbers nor the negative numbers include zero. When zero is a possibility, the following terms are often used: Non-negative numbers: Real numbers that are greater than or equal ...
For a number written in scientific notation, this logarithmic rounding scale requires rounding up to the next power of ten when the multiplier is greater than the square root of ten (about 3.162). For example, the nearest order of magnitude for 1.7 × 10 8 is 8, whereas the nearest order of magnitude for 3.7 × 10 8 is 9.
10 −9 microgram (μg) 3.6 × 10 −9 kg Human ovum [32] [44] 2.4 × 10 −9 kg US RDA for vitamin B12 for adults [45] 10 −8: 10 −8 kg: Speculated approximate lower limit of the mass of a primordial black hole: 1.5 × 10 −8 kg: US RDA for vitamin D for adults [46] ~2 × 10 −8 kg Uncertainty in the mass of the International Prototype of ...
The relation not greater than can also be represented by , the symbol for "greater than" bisected by a slash, "not". The same is true for not less than , a ≮ b . {\displaystyle a\nless b.} The notation a ≠ b means that a is not equal to b ; this inequation sometimes is considered a form of strict inequality. [ 4 ]
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Extremely high-pressure chemical reactors (10 kbar) [citation needed] 1.5 GPa Diamond melts using a 3 kJ laser without turning into graphite first [79] 1.5 GPa 220,000 psi tensile strength of Inconel 625 according to Aircraft metal strength tables and the Mil-Hdbk-5 [80] 5.8 GPa 840,000 psi Ultimate tensile strength of the polymer Zylon: 10 10 Pa