Uncertainty in Measurements & Significant Figures
... morning, you are using a measuring device or instrument. You do the same when making quantitative observations in a scientific laboratory – you are taking a measurement with a measuring device or instrument to determine how much of something there is in your sample. Such measured values are typicall ...
... morning, you are using a measuring device or instrument. You do the same when making quantitative observations in a scientific laboratory – you are taking a measurement with a measuring device or instrument to determine how much of something there is in your sample. Such measured values are typicall ...
standard form - gcse-maths-revise
... TIP: When doing these sort of problems, remember: a) When you round a number to a number of significant figures (e.g. 2 s.f., 3 s.f. etc.), you start counting the significant figures as any which are not 0 from the left. e.g. 0.000628314 to 2 s.f. is 0.00063 8793 to 3 s.f. is 8790 b) When you round ...
... TIP: When doing these sort of problems, remember: a) When you round a number to a number of significant figures (e.g. 2 s.f., 3 s.f. etc.), you start counting the significant figures as any which are not 0 from the left. e.g. 0.000628314 to 2 s.f. is 0.00063 8793 to 3 s.f. is 8790 b) When you round ...
1 slide/page
... The transitive closure of a relation R is the least relation R∗ such that 1. R ⊂ R∗ 2. R∗ is transitive (so that if (u, v), (v, w) ∈ R∗, then so is (u, w)). Example: Suppose R = {(1, 2), (2, 3), (1, 4)}. • R∗ = {(1, 2), (1, 3), (2, 3), (1, 4)} • we need to add (1, 3), because (1, 2), (2, 3) ∈ R Note ...
... The transitive closure of a relation R is the least relation R∗ such that 1. R ⊂ R∗ 2. R∗ is transitive (so that if (u, v), (v, w) ∈ R∗, then so is (u, w)). Example: Suppose R = {(1, 2), (2, 3), (1, 4)}. • R∗ = {(1, 2), (1, 3), (2, 3), (1, 4)} • we need to add (1, 3), because (1, 2), (2, 3) ∈ R Note ...
Elementary mathematics
Elementary mathematics consists of mathematics topics frequently taught at the primary or secondary school levels. The most basic topics in elementary mathematics are arithmetic and geometry. Beginning in the last decades of the 20th century, there has been an increased emphasis on problem solving. Elementary mathematics is used in everyday life in such activities as making change, cooking, buying and selling stock, and gambling. It is also an essential first step on the path to understanding science.In secondary school, the main topics in elementary mathematics are algebra and trigonometry. Calculus, even though it is often taught to advanced secondary school students, is usually considered college level mathematics.