topic Re: Logarithmic expressions in Application Development and Automation Discussions

Logarithmic expressions

Former Member — Fri, 03 Feb 2006 15:35:17 GMT

Hi all,

I want to perform logarithmical expressions in ABAP.

For example i want to have the LOG10 from 300 and get it back with another function, which i don't know.

I have 300, i use the line

lv_value := LOG10( 300 ).

to get the value 2,477...... in lv_value.

Now i want to use a function to get back the number 300 from 2,477.....

Does anyone know which function i have to use for that?

Thanks in advance.

Marcel Leeraar.

Re: Logarithmic expressions

FredericGirod — Fri, 03 Feb 2006 15:44:25 GMT

Use the EXP command

Exp ( Log10 * Ln(10) )

Rgd

Frédéric

Message was edited by: Frédéric Girod

Re: Logarithmic expressions

RichHeilman — Fri, 03 Feb 2006 16:12:52 GMT

Please see the following sample program.



report zrich_0002 .

data: lv_value type p decimals 9.
data: lv_value2 type p decimals 2.


lv_value = log10( 300 ).

write:/ lv_value.

lv_value2 =  exp( lv_value  * log( 10 ) ) .

write:/ lv_value2.

Regards,

Rich Heilman

Re: Logarithmic expressions

Former Member — Fri, 03 Feb 2006 16:20:43 GMT

hi,

Chk this out as this is the simplest way to achieve what you wanted.

data: v_num type p, v_exp type p, v_res type p.

v_num = 10.

v_exp = '2.47'.

v_res = v_num ** v_exp.

write 😕 v_res.

Regards,

Jhansi.

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