cos() command not working in Linux


 
Thread Tools Search this Thread
Top Forums Programming cos() command not working in Linux
# 8  
Old 09-18-2008
Why do you believe that the cosine of (approximately) pi/2 is 0.999624217 rather than zero?
# 9  
Old 09-18-2008
Quote:
Originally Posted by spirtle
Why do you believe that the cosine of (approximately) pi/2 is 0.999624217 rather than zero?
Smilie

I put 1.570796 in my calculator and pressed the cos button. Sure enough, I got 0.999624217. But my calculator wakes up in degree mode. Shifting into radians, I repeated the experiment. This time I got .000000327. The math library works with radians, not degrees.
# 10  
Old 09-19-2008
Quote:
Originally Posted by spirtle
Why do you believe that the cosine of (approximately) pi/2 is 0.999624217 rather than zero?

Actualy working towards finding DCT of samples, so need accurate values
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Simple sed command not working; could be a Mac/Linux vs. PC/Linux issue

Hello, I am on a Mac and trying to clean up some monthly files with a very simple SED: sed '3,10d;/<ACROSS>/,$d' input.txt > output.txt (from the input, delete lines 3 - 10; then delete from the line containing <ACROSS> to the end of the file) then output to output.txt Even when I try... (2 Replies)
Discussion started by: verbatim
2 Replies

2. Shell Programming and Scripting

At command for Linux job not working from php

I have a script .sh with a curl command in it: curl --digest "http://xxxxxxx.xxx/mail.php?email=xxxx@xxx.xx"; from terminal this works good : ./script.sh //(mail arrives in my box) from php this works good: shell_exec('./phpsc.sh'); // (mail arrives in my box) from terminal this... (13 Replies)
Discussion started by: extra93
13 Replies

3. UNIX for Dummies Questions & Answers

SWAP command not working on Linux machine

Hi I am working on linux machine and swap command is not working Linux Machine On Solaris machine it is working fine: uname -a SunOS rgsm01 5.9 Generic_118558-03 sun4u sparc SUNW,Sun-Fire-V440 swap -s total: 6596320k bytes allocated + 1035968k reserved = 7632288k used, 38893408k available ... (5 Replies)
Discussion started by: Basant Mishra
5 Replies

4. Red Hat

isql command not working in Linux 64bit

I am using Linux RHEL5 64 bit and installed oracle 11g. I want to check ODBC connection , i had modified odbc.ini file when i use this command -isql I am getting following error . bash: isql: command not found Kindly help (5 Replies)
Discussion started by: roopalidalvi231
5 Replies

5. Shell Programming and Scripting

AWK command working different in Linux

Hi All I have fired a command in linux table=`echo ${file_name} | awk '{FS="/"; print $NF}' | awk '{FS="."; print $1}'` where file_name has /data/ds/dpr_ebicm_uat/backfill/temp/etl_app_info.csv /data/ds/dpr_ebicm_uat/backfill/temp/etl_app_jobs.csv ... (10 Replies)
Discussion started by: vee_789
10 Replies

6. Shell Programming and Scripting

sed command working different in linux environment.

Hi I tried running the code scrname=`whence $0 | sed -e 's/\.\///g'` where $0 is substituted by cm_dsjobrun.sh in unix env then the value it returns me is SCRNAME=/data/ds/dpr_ebicm_uat/etl/cm3_0/scripts/shell/cm_dsjobrun.sh whereas i ran the same code on linux env The value... (9 Replies)
Discussion started by: vee_789
9 Replies

7. Shell Programming and Scripting

no command is not working to send a mail in linux redhot server

HI All, I am facing the problem with rmail ... Actually my server is linux environment Redhot server. To send a mail which command I have to use it . I want subject and I want to Include CC also And body of the mail also there . But If I use rmail command it is not taking any options to... (1 Reply)
Discussion started by: ksrivani
1 Replies

8. Shell Programming and Scripting

ITcl :: try_eval command not working in Linux 5.4

Hi, My code uses try_eval block to do some code execution. This piece of code does not work on RHEL 5.4. The program just hangs at the try_eval block and does not throw any errors either. The same program however works in other Linux boxes that we have. I have written a simple program that... (0 Replies)
Discussion started by: archana485
0 Replies

9. UNIX for Dummies Questions & Answers

sin/cos with awk

I am trying to use awk to find the trigonometric functions (in degrees) I found this on: Trigonometric functions - Rosetta Code print " sin(-30) =", sin(-30 * degrees) which says it has an output of: sin(-30) = -0.5 But when I use it I get the wrong answer: awk '{print " ... (2 Replies)
Discussion started by: cosmologist
2 Replies

10. Linux

FTP not working under Linux but working under any other OS ??? Very strange

Dear all, I am totally despaired and puzzled. Using Filezilla under Windows under the same network as our Linux servers is working. Using FTP command-line client under any of our Linux debian servers is not working ! I tried with different FTP servers -> same problem ! All commands are... (12 Replies)
Discussion started by: magix_ch
12 Replies
Login or Register to Ask a Question