MathShow Manual

Instalation

This is the most important line:
(you should change the math expression but do not change the word "math")

You must add the following line to run the application:

Test

Copy one of these examples and save it to a file named test.html and then open it on your browser.

Font size

1+2/3	<a id=math data-size=10>1+2/3</a>
1+2/3	<a id=math data-size=25>1+2/3</a>

Basics

Constants (greek chars):

φ	φ
Φ	Φ

(The first character specifies the upper/lower case.)

Greek char names:
alpha beta gamma delta epsilon zeta eta theta iota kappa lambda mu
nu xi omicron pi rho sigma tau upsilon phi chi psi omega
Greek chars:
αβγδεζηθικλμνξοπρστυφχψω
ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ

Other constants:

&infinity;

&infinity;

Operators:

0.1234567e89	numbers
+ -	binary operators
* /	binary operators
^	binary operator
!	factorial
-	unary operator
( ) [ ] { } « »	agregators
sin( angle )	functions
=	equal operator
A ... Z	variables
, ;	separators

Extra commands

hide result hide result
1+2+3+4 1+2+3+4
show result show result
1+2+3+4 1+2+3+4
hide result hide result
1+2+3+4 1+2+3+4

Common operators and functions

Function arguments are separated by ','

fraction:

a / b

1/2 1/2

factorial:

expression !

FACT( expression )

3! 3!

(4+1)! (4+1)!

FACT(5) FACT(5)

absolute/modulus:

ABS( arg )

ABS(-2/5) ABS(-2/5)

power:

base ^ exponent

POWER( base , exponent )

2^3 2^3

POWER(2,3) POWER(2,3)

square root:

SQRT( arg )

SQRT(25) SQRT(25)

SQRT(50/2) SQRT(50/2)

any index root:

NROOT( arg1 , arg2 )

NROOT(3,8) NROOT(3,8)

8^(1/3) 8^(1/3)

Decimal logarithm:

LOG10( arg )

LOG10(1000) LOG10(1000)

10^3 10^3

Natural logarithm:

LN( arg )

LN(e) LN(e)

LN(1000) LN(1000)

LOG10(1000) = LN(1000)/LN(10) LN(1000)/LN(10)

Exponential:

EXP( arg )

EXP(1) EXP(1)

e^1 e^1

e^10 e^10

10^3 = EXP(3*LN(10)) EXP(3*LN(10))

2^3 = EXP(3*LN(2)) EXP(3*LN(2))

If you change 'e' then things get ambiguous:

LETVAR(e,2) LETVAR(e,2)

e^1 e^1

EXP(1) EXP(1)

e e

Trigonometric functions

Other functions

INT

INT( expression )

INT(2.35) INT(2.35)
INT(-2.35) INT(-2.35)
INT(2.53) INT(2.53)
INT(-2.53) INT(-2.53)

FRAC

FRAC( expression )

FRAC(2.35) FRAC(2.35)
FRAC(-2.35) FRAC(-2.35)
FRAC(2.53) FRAC(2.53)
FRAC(-2.53) FRAC(-2.53)

ROUND

ROUND( expression )

ROUND(2.35) ROUND(2.35)
ROUND(-2.35) ROUND(-2.35)
ROUND(2.53) ROUND(2.53)
ROUND(-2.53) ROUND(-2.53)

LET variable with a value

LETVAR( variable , expression )

show result v v hide result
LETVAR(v,5) LETVAR(v,5) show result
v v

ARRAY - Set array index:

LETARRAY( name, index, value )

LETARRAY( u, 1, 10 ) LETARRAY( u, 1, 10 )

LETARRAY( u, 2, 20 ) LETARRAY( u, 2, 20 )

Get ARRAY index:

arrayname[ index ]

u[1]+u[2] u[1]+u[2]

ABSROOT ABSRT

ABSROOT( expression )

ABSRT( expression )

ABSROOT(27) ABSROOT(27)
3^3 3^3
ABSRT(256) ABSRT(256)
4^4 4^4

Functions without result

SET

SET( list )

SET(1,2,3,4) SET(1,2,3,4)
SET(0,1/2,1) SET(0,1/2,1)
SET(0,(1/2)/(3/4),1) SET(0,(1/2)/(3/4),1)

SYSTEM:

(lines are delimited with ';')

SYSTEM( equation1 , equation2 , ... , equationN )

system(x-y=0;x+y=2) SYSTEM(x-y=0;x+y=2)