Calculator

This site has a Direct Algebra Calculator.

Click on the 'Calculator' button in the top menu to open and close the input text area.

Enter the equation with the correct input code (see below) and press 'Enter' to get the complete solution.

List of functions

Name	Symbol	Input Code
addition	+	+
substraction	−	-
multiplication	×	*
division	÷	/
multiplier (×10)	E	e
power	^	**
pi	π	p
Euler's number	e	n
natural log	LN	ln
log base 10	LOG₁₀	lg (or log)
log base 2	LOG₂	lb
sine	SIN	s
cosine	COS	c
tangent	TAN	t
arcsine	ASIN	as
arccosine	ACOS	ac
arctangent	ATAN	at
opening parenthesis	(	«
closing parenthesis	)	»
infinity	∞
not a number	NaN
number too large	InfiniNaN

Input code is not case sensitive.

Trigonometry is calculated in degrees.

Missing opening and closing parenthesis are completed automatically. For example:

1+1»/«2+2

(1 + 1) ÷ (2 + 2) =
2 ÷ (2 + 2) =
2 ÷ 4 =
0.5

Implied multiplication are completed automatically. For example:

«2p+3n»«2s30+3ac0.5»

(2 × π + 3 × e) × (2 × SIN30 + 3 × ACOS0.5) =
(2 × 3.141592653589793 + 3 × e) × (2 × SIN30 + 3 × ACOS0.5) =
(2 × 3.141592653589793 + 3 × 2.718281828459045) × (2 × SIN30 + 3 × ACOS0.5) =
(2 × 3.141592653589793 + 3 × 2.718281828459045) × (2 × SIN30 + 3 × 59.99999999999999) =
(2 × 3.141592653589793 + 3 × 2.718281828459045) × (2 × 0.49999999999999994 + 3 × 59.99999999999999) =
14.438030792556722 × (2 × 0.49999999999999994 + 3 × 59.99999999999999) =
14.438030792556722 × 180.99999999999997 =
2613.283573452766

Although not an intended function, the calculator will solve most series of + and −. For example:

3+--+-3

3 + − − + − 3 =
3 − 3 =
0

All calculations are correct, but input is not completely 'idiot proof'. For very complicated equations, verify detailed calculations. If the input text area freezes, reload page to reinitialize.

Function priority

Functions are solved in this order:

( ) [« »]
π [p]
e [n]
^ [**]
ASIN [as]
ACOS [ac]
ATAN [at]
SIN [s]
COS [c]
TAN [t]
LOG₁₀ [lg or log]
LOG₂ [lb]
LN [ln]
× and ÷ [* and /]
+ and − [+ and -]