L earn mathematics in English

As you know the language of mathematics uses signs and symbols. In the table below you can find some of them. Study their wording

Sign	Designation	Example	Wording
	Summation sign (capital sigma)	_a	The sum from (a equals) one to n of x sub a
	Product sign (capital pi [pai])	_a	The product from (a equals) one to n of x sub a
Log	Logarithm (log) sign	log ₁₀3	The log(arithm) of three to the base ten
′	Dash, prime	a′ b″	a dash times b double dash = a prime times b double prime
( )	Parentheses	3 (a+b)	Three multiplied by a plus b in parentheses = three times the sum of a and b= three times the quantity, a plus b= three, (initial) parenthesis, a plus b, (final) parenthesis
[ ]	Brackets		Bracket, a+b, bracket, multiplied by c
{ }	Braces		One third times (initial) brace, a, (initial) bracket, b plus k, (initial) parenthesis, c minus d, (final) parenthesis, (final) bracket, (final) brace
	Identity sign		a is identical to/with b
>	Greater than sign	a > b	a is greater than b
<	Less than sign	a < b	a is less than b
≥	Greater than or equal to sign	a ≥ b	a is greater than or equal to b
≤	Less than or equal to sign	a ≤ b	a is less than or equal to b
	Approximation sign		a is approximately (nearly) equal to b
∞	Infinity sign	→ ∞	x tends to infinity = x approaches infinity
	Therefore sign		Therefore a equals b
	Differential sign		Differential of x
	Derivative	;	(The first) derivative of y with respect to x = dy to dx ; the second derivative of y with respect to x
	Integral sign		Integral between limits x and y
sin	Sine		Sine x
	Cosine		Cosine x
tan	Tangent	Tan x	Tangent x
cot	Cotangent	Cot x	Cotangent x