Drexel dragonThe Math ForumDonate to the Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: data convertion
Replies: 24   Last Post: Apr 8, 2011 12:23 PM

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
anil.m.007@gmail.com

Posts: 22
Registered: 2/16/11
Re: data convertion
Posted: Apr 7, 2011 5:31 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

hi sir,

for calculating the exponent i have a formula like this
here x= 3.3 %user can enter the value like this
ymax = 1023
N =int(log2(x/ymax)) = -8
there is a another way to get the N value also
like this Ymax/X = 1023/3.3 =310
max(2^-N) <310 ==> 256 % 2^-N value is always less then the result
so N=-8 = 11000

and finding the 11-bit mantissa
i am calculating like this
==> X*2^-N = 3.3*256 =844.8 =845 == 01101001101 =Y

finally i am adding this two binary like ==> 11000 01101001101
if i convert this binary value into hex it will give like 'C34D'


i tried with formula to finding the N value its giving the error like
??? Undefined function or method 'int' for input arguments of type 'double'.

how can i solve this problem..

thank you,



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.