x + 1
| x plus one
|
x -1
| x minus one
|
x ± 1
| x plus or minus one
|
xy
| x y; x times y; x multiplied by y
|
(x — y)
(x + y)
| x minus y, x plus y
|
x/y
| x over y; x divided by y;
|
x ÷ y
| x divided by y
|
x = 5
| x equals 5; x is equal to 5
|
x ≈ y
| x is approximately equal to y
|
x ≡ y
| x is equivalent to y; x is identical with y
|
x ≠ y
| x is not equal to y
|
x > y
| x is greater than y
|
x < y
| x is less than y
|
x ≥ y
| x is greater than or equal to y
|
x ≤ y
| x is less than or equal to y
|
0 < x < 1
| zero is less than x is less than 1; x is greater than zero and less than 1
|
0 ≤ x ≤ 1
| zero is less than or equal to x is less than or equal to 1; x is greater than or equal to zero and less than or equal to 1
|
x²
| x squared
|
x³
| x cubed
|
x4
| x to the fourth; x to the power four
|
xn
| x to the n; x to the nth; x to the power n
|
x-n
| x to the minus n; x to the power of minus n
|
√
| root x; square root x; the square root of x
|
∛
| the cube root of x
|
∜
| the fourth root of x
|
| the nth root of x
|
(x + y)²
| x plus y all squared
|
(x/y)²
| x over y all squared
|
n!
| n factorial; factorial n
|
x%
| x percent
|
∞
| infinity
|
x ∝ y
| x varies as y; x is (directly) proportional to y
|
x ∝ 1/y
| x varies as one over y; x is indirectly proportional to y
|
ẋ
| x dot
|
ẍ
| x double dot
|
f(x) fx
| f of x; the function of x
|
f'(x)
| f dash x; the (first) derivative of with respect to x
|
f''x
| f double-dash x; the second derivative off with respect to x
|
f'''(x)
| f triple-dash x; f treble-dash x; the third derivative off with respect to x
|
f(4)
| f four x; the fourth derivative off with respect to x
|
∂v
| the partial derivative of v
|
∂v ∂θ
| delta v by delta theta, the partial derivative of v with respect to θ
|
∂ ² v ∂θ²
| delta two v by delta theta squared; the second partial derivative of v with respect to θ
|
dv
| the derivative of v
|
dv dθ
| d v by d theta, the derivative of v with respect to theta
|
d ² v dθ²
| d 2 v by d theta squared, the second derivative of v with respect to theta,
|
∫
| integral
|
| integral from zero to infinity
|
∑
| sum
|
| the sum from i equals 1 to n
|
w.r.t.
| with respect to
|
logey
| log to the base e of y; log y to the base e; natural log (of) y
|
∴
| therefore
|
∵
| because
|
→
| gives, approaches
|
Δx → 0
| delta x approaches zero
|
limΔx→0
| the limit as delta x approaches zero, the limit as delta x tends to zero
|
LtΔx→0
| the limit as delta x approaches zero, the limit as delta x tends to zero
|
m/sec
| metres per second
|
x ∈ A
| x belongs to A; x is a member of A; x is an element of A
|
x∉ A
| x does not belong to A; x is not a member of A; x is not an element of A
|
A⊂ B
| A is contained in B; A is a proper subset of B
|
A ⊆ B
| A is contained in B; A is a subset of B
|
A ⋂ B
| A intersection B
|
A ⋃ B
| A union B
|
cos x
| cos x; cosine x
|
sin x
| sine x
|
tan x
| tangent x, tan x
|
cosec x
| cosec x
|
sinh x
| shine x
|
cosh x
| cosh x
|
tanh x
| than x
|
|x|
| mod x; modulus x
|
18 ℃
| eighteen degrees Centigrade
|
70 ℉
| seventy degrees Fahrenheit
|