Date 
Contents 
Apr 19,2019 
 The new calculation library is now available.

Apr 16,2019 
 The new calculation libraries are now available.

Apr 8,2019 
 The new calculation library is now available.

Jan 24,2019 
 The new calculation library is now available.

Jan 22,2019 
 The new calculation libraries are now available.

Jan 21,2019 
 The new calculation library is now available.

Jan 11,2019 
 The new calculation library is now available.

Dec 14,2018 
 The new calculation library is now available.

Dec 13,2018 
 The new calculation library is now available.

Nov 5,2018 
 The new calculation libraries are now available.

Sep 28,2018 
 The new calculation library is now available.

Sep 20,2018 
 The new calculation libraries are now available.

Sep 12,2018 

Sep 7,2018 
 The new calculation libraries are now available.

Aug 31,2018 
 The new calculation library is now available.

Aug 27,2018 
 The new calculation library is now available.

Jul 27,2018 
 The new calculation libraries are now available.

Jul 19,2018 
 New functions, "random_f()" , "random_f(a,b)" and "random_i(a,b)" (Generate a random number) are now available on the Advanced Cal.

Jul 17,2018 
 The new calculation libraries are now available.

May 30,2018 
 The new calculation libraries are now available.

Apr 13,2018 
 The new calculation libraries are now available.

Mar 19,2018 
 The number of digits on the Advanced Cal can be specified up to 102 digits on a trial basis.

Feb 13,2018 
 The new calculation libraries are now available.

Feb 8,2018 
 We have made it easy to use formula editors.

Jan 25,2018 
 The new calculation library is now available.

Jan 19,2018 
 New functions, "Summation" and "Production" (Sigma and Pi Symbol) are now available on the Advanced Cal.

Jan 12,2018 
 The new calculation libraries are now available.

Dec 26,2017 
 The new calculation library is now available.

Dec 20,2017 
 The new calculation libraries are now available.

Nov 15,2017 
 The new calculation libraries are now available.

Oct 11,2017 
 The new calculation libraries are now available.

Sep 15,2017 

Sep 1,2017 

Aug 22,2017 
 The new calculation libraries are now available.

Jul 27,2017 
 The new calculation libraries are now available.

Jul 24,2017 
 The new calculation libraries are now available.

Jul 21,2017 
 The new calculation library is now available.

Jul 14,2017 
 The new calculation library is now available.

Jun 8,2017 
 The new calculation library is now available.

Jan 6,2017 
 The new calculation library is now available.

Dec 28,2016 
 The new calculation library is now available.

Dec 7,2016 
 The new calculation libraries are now available.

Sep 1,12016 
 The new calculation libraries are now available.

Sep 26,2016 
 The new calculation library is now available.

Jul 19,2016 
 The new calculation library is now available.

Feb 17,2016 
 The new calculation library is now available.

Jan 20,2016 
 The new calculation library is now available.

Dec 8,2015 
 The new calculation library is now available.

Dec 7,2015 
 The new calculation library is now available.

Oct 28, 2015 
 The new calculation library is now available.

Jun 8, 2015 
 The new calculation library is now available.

Dec 22, 2014 
 The new calculation library is now available.

Jul 22, 2014 
 The new calculation library is now available.

Mar 21, 2014 
 The new calculation library is now available.

Mar 15, 2014 
 The new calculation library is now available.

Feb 12, 2014 
 The new calculation library is now available.

Sep 30,2013 
 The new calculation library is now available.

Sep 25, 2013 
 The new calculation library is now available.

Jul 18, 2013 
 The new calculations are now available.

Feb 15, 2013 

Keisan service renewal open today.

Feb 12, 2013 
 The new calculations are now available.

Jan 31, 2013 

The new calculators are now available.

Jan 25, 2013 

The new calculator is now available.

Jan 15, 2013 

The new calculator is now available.

Dec 20, 2012 

The new calculators are now available.

Dec 10, 2012 

The new calculators are now available.

Dec 7, 2012 

The new calculators are now available.

Oct 25, 2012 

The new calculators are now available.

Oct 10, 2012 

The new calculator is now available.

Oct 2, 2012 

The new calculators are now available.

Aug 31, 2012 

The new calculators are now available.

Aug 8, 2012 

The new calculators are now available.

Jul 31, 2012 

The new calculators are now available.

Jul 19, 2012 

The new calculators are now available.

Jul 12, 2012 

The new calculator is now available.

Jul 4, 2012 

The new calculators are now available.

Jun 27, 2012 

The new calculators are now available.

Jun 22, 2012 

The new calculators are now available.

Jun 21, 2012 

The new calculators are now available.

Apr 6, 2012 

The new calculator is now available.
 [My Library] is a private library to create your own expression. Once you have created it, please register it in [Our Library] to open to other users.

Mar 27, 2012 

The new calculator is now available.

Mar 8, 2012 

The new calculators are now available.

Feb 23, 2012 

The new calculator is now available.

Dec 5, 2011 

The new calculator is now available.

Oct 7, 2011 

The new calculator is now available.

Jul 26, 2011 

The new calculator is now available.

Jul 25, 2011 

The new calculator is now available.

May 16, 2011 

The new calculator is now available.

May 13, 2011 

The new calculator is now available.

May 10, 2011 

The new calculator is now available.

May 9, 2011 

The new calculator is now available.

Feb 14, 2011 

The new calculators are now available.

Jan 19, 2011 

The new calculator is now available.

Jan 17, 2011 

The new calculators are now available.

Jan 12, 2011 

The new calculator is now available.

Dec 22, 2010 

Keisan service is now available for smartphones.

Dec 13, 2010 

The new calculators are now available.

Nov 16, 2010 

The new calculators are now available.

Oct 26, 2010 

By user registering with Keisan service, you may
1. Store and read input data (Variable) to and from each Library.
2. Store and read input data (Expression and Variable) to and from Calculator.
Please click the link 'User registering' at upper right corner on the screen.

Sep 27, 2010 

The new calculators are now available.

Aug 10, 2010 

The new calculators are now available.

May 19, 2010 

The new calculator is now available.

May 18, 2010 

The new calculators are now available.

Apr 21, 2010 

The new calculator is now available.

Apr 20, 2010 

The new calculators are now available.

Feb 22, 2010 

The new calculators are now available.

Jan 21, 2010 

The new calculator is now available.

Jan 05, 2010 

The new calculators are now available.

Nov 16, 2009 

The new calculators are now available.
 Science > Sound and light > Velocity of sound in air
 Science > Sound and light > Velocity of sound in seawater

Oct 05, 2009 

The new calculators are now available.
 Science > Astronomy > Moonrise and moonset times (world location)
 Science > Astronomy > Rising and setting of the planets (world location)

Aug 03, 2009 

The new calculator is now available.
 Life > Financial > Nomial and effective rates

Jul 13, 2009 

The new calculators are now available.
 Mathematics > Permutation and combination > Combinations (table)
 Mathematics > Permutation and combination > Combinations with repetition (table)
 Mathematics > Permutation and combination > Permutation (table)
 Mathematics > Permutation and combination > Permutation with repetition (table)

Jul 10, 2009 

The new calculators are now available.
 Lefe > Calendar > Duration between two dates
 Lefe > Calendar > Date calculator
 Lefe > Calendar > Weekday

Jun 18, 2009 

The new calculator is now available.
 Special Function > Beta function > Incomplete beta function (chart)
 Special Function > Elliptic integral > Complete elliptic integral of the 3rd kind Π(n,k)
 Special Function > Elliptic integral > Incomplete elliptic integral of the 1st kind F(φ,k)
 Special Function > Elliptic integral > Incomplete elliptic integral of the 2nd kind E(φ,k)
 Special Function > Elliptic integral > Incomplete elliptic integral of the 3rd kind Π(x,n,k)
 Special Function > Elliptic integral > Incomplete elliptic integral of the third kind Π(φ,n,k)

Jun 8, 2009 

"History of recently executed Libary" is now available.

Jun 1, 2009 

The new calculators are now available.
 Calendar > Age chart
 Calendar > The date of Easter
 Financial > Tip calculator

Apr 27, 2009 

The new calculator is now available.
 Life > Calendar > World Time

Mar 2, 2009 

The new calculators are now available.
 Life > Financial > Loan amortization
 Life > Financial > Advanced repayment of loan amortization

Feb 16, 2009 

The new calculators are now available.
 Life > Financial > Simple interest (I, FV)
 Life > Financial > Simple interest (PV)
 Life > Financial > Simple interest (rate)
 Life > Financial > Simple interest (days)
 Life > Financial > Compound interest (FV)
 Life > Financial > Compound interest (PV)
 Life > Financial > Compound interest (rate)
 Life > Financial > Compound interest (n)
 Life > Financial > Future value based on periodic payments
 Probability Function > Noncentral chisquare distribution > Noncentral chisquare distribution (noncentrality)
 Probability Function > Noncentral tdistribution > Noncentral tdistribution (noncentrality)
 Probability Function > Noncentral Fdistribution > Noncentral Fdistribution (noncentrality)
 Probability Function > Poisson distribution > Poisson distribution (mean λ)

Dec 22, 2008 

Welcome to Keisαn service site of CASIO. Today we have launched an English version of Keisαn service.

Jan 9, 2009 

The new calculator is now available.
 Science > Free fall > Free fall with air resistance (time and velocity)

Dec 22, 2008 

Welcome to Keisαn service site of CASIO. Today we have launched an English version of Keisαn service.
