Tag Archives: LOG10

LOG10()

Posted on by vivaclipper

LOG10()

Decadic logarithm of a number

Syntax

      LOG10( <nNumber> ) -> nLogarithm

Arguments

<nNumber> number to logarithm

Returns

<nLogarithm> decadic logarithm of <nNumber>

Description

The function LOG10() calculates the decadic logarithm of <nNumber>, i.e. 10ˆ<nLogarithm> == <nNumber>.

Examples

      ? log10( 10.0 )         // --> 1.0
      ? log10( sqrt( 10.0 ) ) // --> 0.5

Tests

      log10( 10.0 )         == 1.0
      log10( sqrt( 10.0 ) ) == 0.5

Compliance

LOG10() is compatible with CT3’s LOG10().

Platforms

All

Files

Source is math.c, library is libct.

Harbour Math Functions

Posted on by vivaclipper

Abs

ACos

ASin

ATan

ATn2

Cos

CosH

DToR

Exp

Exponent 

Fact

Floor

GetPrec

hb_mathErBlock
hb_mathErMode
hb_mathGetErrMode
hb_mathGetHandler
hb_mathGetLastError
hb_mathIsMathErr
hb_mathResetError
hb_mathSetErrMode
hb_mathSetHandler

Infinity
Int
Log

Log10
Max

Mantissa
Min
Mod

Pi
Round

RToD

SetPrec

Sign

Sin

SinH
Sqrt

Tan

TanH

CT_LOG10

Posted on by vivaclipper 
 LOG10()
 Computes the common logarithm
------------------------------------------------------------------------------
 Syntax

     LOG10(<nValue>) --> nLog10

 Argument

     <nValue>  Designates a number for which the base 10 logarithm is
     determined.

 Returns

     LOG10() returns the base 10 logarithm for the <nValue> number.

 Description

     LOG10() determines the common logarithm for a number.

 Note

     .  For non-mathematicians, look at it this way:  to what power
        must 10 be raised (10n) so that <nValue> results?

 Example

     Display common logarithm values:

     ? LOG10(0.01)            // -2.00
     ? LOG10(2)               //  0.30
     ? LOG10(100)             //  2.00
     ? LOG10(INFINITY())      //  308.25

Tools — Mathematical Functions

Posted on by vivaclipper 
Introduction Mathematical Functions
ACOS()    Computes the cosine arc
ASIN()    Computes the sine arc
ATAN()    Computes the tangent arc
ATN2()    Computes the angle size from the sine and cosine
CEILING() Rounds up to the next integer
COS()     Computes the cosine
COT()     Computes the cotangent
DTOR()    Converts from a degree to radian measure
FACT()    Computes the factorial
FLOOR()   Rounds down to the next integer
FV()      Computes future value of capital
GETPREC() Determines the level of precision that is set
LOG10()   Computes the common logarithm
PAYMENT() Computes the periodic payment amount
PERIODS() Computes number of payment periods necessary to repay a loan
PI()      Returns pi with the highest degree of accuracy
PV()      Computes the cash present value after interest charges
RATE()    Computes the interest rate for a loan
RTOD()    Converts from a radian to degree measure
SETPREC() Sets the precision level for trigonometric functions
SIGN()    Determines the mathematical sign of a number
SIN()     Computes the sine of a radian value
TAN()     Computes the tangent of a radian value