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What's New

Date	Contents
Feb 17,2023	The new calculation library is now available. Conversion > Unit Conversion > Magnetic Flux Density Conversion
Feb 8,2023	The new calculation library is now available. Conversion > Unit Conversion > Angular Velocity Conversion
Dec 15,2022	The new calculation library is now available. Conversion > Unit Conversion > Electrical Resistance Conversion
Nov 25, 2022	The new calculation library is now available. Conversion > Unit Conversion > Kinematic Viscosity Conversion
Sep 14,2022	The new calculation library is now available. Conversion > Unit Conversion > Radioactivity Conversion Conversion > Unit Conversion > Radiation Exposure Conversion Conversion > Unit Conversion > Radiation absorbed dose conversion
Jul 14, 2022	The new calculation library is now available. Conversion > Unit Conversion > Illuminance Conversion Conversion > Unit Conversion > Thermal Conductivity Conversion
Jun 17, 2022	The new calculation library is now available. Calendar > Date > Number of Days of the Week
Jul 16, 2021	The new calculation library is now available. Utility > Information processing > Data Transfer Speed Utility > Information processing > Data Transfer Time
Jun 18, 2021	The new calculation library is now available. Conversion > Unit Conversion > Viscosity conversion Conversion > Unit Conversion > Torque Conversion
Jun 11, 2021	The new calculation library is now available. Health > Exercise > Rodeo Calorie Health > Exercise > Rope jumping Calorie Health > Exercise > Rowing Calorie Health > Exercise > Yoga Calorie
May 28, 2021	The new calculation library is now available. Calendar > Date > 12 zodiac constellations Calendar > Time > Addition and subtraction of hours and minutes Calendar > Time > Your age in seconds
May 7,2021	The new calculation library is now available. Special Function > Activation function > Leaky ReLU Special Function > Activation function > Leaky ReLU (chart)
Sep 25,2020	The new calculation library is now available. Health > Exercise > Track and field Calorie Health > Exercise > Rock climbing Calorie
Sep 11,2020	The new calculation library is now available. Health > Exercise > Rollerblading Calorie Health > Exercise > Softball Calorie Health > Exercise > Boxing Calorie
Sep 9,2020	The new calculation library is now available. Health > Exercise > Golf Calorie Health > Exercise > Horseback riding Calorie Health > Exercise > Volleyball Calorie Health > Exercise > Football Calorie Health > Exercise > Hockey Calorie
May 22,2020	The new calculation library is now available. Mathematics > Others > Modular Multiplicative Inverse
Apr 9,2020	The new calculation library is now available. Mathematics > Progression > Infinite geometric series
Feb 10,2020	The new calculation libraries are now available. Mathematics > Various probability > Random Integers Mathematics > Various probability > Normal distribution random number Mathematics > Various probability > Logarithmic normal distribution random number Mathematics > Various probability > Gamma distribution random number Mathematics > Various probability > Chi-square distribution random number Mathematics > Various probability > Student's t-distribution random number Calendar > Date > Day of Week (Every year)
Jan 23,2020	The new calculation libraries are now available. Health > Exercise > Tennis Calorie Health > Exercise > Cross country skiing Calorie
Jan 21,2020	The new calculation libraries are now available. Health > Exercise > Basketball Calorie Health > Exercise > Climbing Calorie
Jan 7,2020	The new calculation library is now available. Linear Algebra > Matrix Operation > Matrix power
Oct 8,2019	The new calculation libraries are now available. Probability Function > Lévy distribution > Lévy distribution Probability Function > Lévy distribution > Lévy distribution (chart) Probability Function > Lévy distribution > Lévy distribution (percentile)
Sep 30,2019	We have updated our privacy notice.
Sep 4,2019	The new calculation library is now available. Health > Health Check > Total Daily Energy Expenditure (TDEE)
Jul 17,2019	The new calculation libraries are now available. Mathematics > Volume and surface area > Volume of a equilateral triangular prism Mathematics > Volume and surface area > Height of a equilateral triangular prism Mathematics > Volume and surface area > Volume of a regular hexagonal prism Mathematics > Volume and surface area > Height of a regular hexagonal prism
Jul 1,2019	Up to 130 digits can be specified in Advanced Cal.
Jun 7,2019	The new calculation library is now available. Mathematics > Equation > Linear inequality
Jun 4,2019	The new calculation library is now available. Calendar > Date > Cyclic Date
May 30,2019	The new calculation library is now available. Conversion > Unit Conversion > Data Transfer Rate Conversion
Apr 19,2019	The new calculation library is now available. Conversion > Unit Conversion > Volumetric Flow Rate Conversion
Apr 16,2019	The new calculation libraries are now available. Conversion > Unit Conversion > Ratio Conversion Conversion > Unit Conversion > Metric prefix Conversion
Apr 8,2019	The new calculation library is now available. Calendar > Other Calendars > Japanese Holidays
Jan 24,2019	The new calculation library is now available. Numerical analysis > Differential equation > Euler's method(2nd-derivative)
Jan 22,2019	The new calculation libraries are now available. Numerical analysis > Differential equation > Runge-Kutta method (2nd-order,2nd-derivative) Numerical analysis > Differential equation > Runge-Kutta method (4th-order,2nd-derivative)
Jan 21,2019	The new calculation library is now available. Conversion > Unit Conversion > Fuel Consumption Conversion
Jan 11,2019	The new calculation library is now available. Science > Free fall > Projection (duration, height and distance) (chart)
Dec 14,2018	The new calculation library is now available. Mathematics > Others > Remainder
Dec 13,2018	The new calculation library is now available. Conversion > Unit Conversion > Density Conversion
Nov 5,2018	The new calculation libraries are now available. Special Function > Activation function > tanh(x) function Special Function > Activation function > Derivative tanh(x) function Special Function > Activation function > Second Derivative tanh(x) function Special Function > Activation function > tanh(x) function (chart)
Sep 28,2018	The new calculation library is now available. Mathematics > Volume and surface area > Volume of an elliptic cylinder
Sep 20,2018	The new calculation libraries are now available. Mathematics > Volume and surface area > Volume of an elliptic cone Mathematics > Volume and surface area > Volume of an elliptic truncated cone
Sep 12,2018	We have updated our privacy notice.
Sep 7,2018	The new calculation libraries are now available. Mathematics > Space geometry > New coordinates by 3D rotation of points Special Function > Activation function > ReLU Special Function > Activation function > ReLU (chart)
Aug 31,2018	The new calculation library is now available. Calendar > Date > How many days until ~ ?
Aug 27,2018	The new calculation library is now available. Mathematics > Area > Google maps area
Jul 27,2018	The new calculation libraries are now available. Calendar > Date > Leap year checker Calendar > Date > Leap year generator
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. Probability Function > Pareto distribution > Pareto distribution Probability Function > Pareto distribution > Pareto distribution (chart) Probability Function > Pareto distribution > Pareto distribution (percentile) Probability Function > Pareto distribution > Generalized pareto distribution Probability Function > Pareto distribution > Generalized pareto distribution (chart) Probability Function > Pareto distribution > Generalized pareto distribution (percentile)
May 30,2018	The new calculation libraries are now available. Utility > Information processing > Convert Unix timestamp to Date & Time Utility > Information processing > Convert Date & Time to Unix timestamp
Apr 13,2018	The new calculation libraries are now available. Special Function > Activation function > Softsign function Special Function > Activation function > Softplus function Special Function > Activation function > Derivative Softsign function Special Function > Activation function > Derivative Softplus function Special Function > Activation function > Softsign function (chart) Special Function > Activation function > Softplus function (chart)
Mar 19,2018	Up to 102 digits can be specified in Advanced Cal.
Feb 13,2018	The new calculation libraries are now available. Probability Function > Studentized range distribution > Studentized range distribution Probability Function > Studentized range distribution > Studentized range distribution (percentile)
Feb 8,2018	We have made it easy to use formula editors.
Jan 25,2018	The new calculation library is now available. Special Function > Activation function > Softmax function
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. Special Function > Activation function > Sigmoid function Special Function > Activation function > Derivative Sigmoid function Special Function > Activation function > Second Derivative Sigmoid function Special Function > Activation function > Sigmoid function (chart) Linear Algebra > Matrix Operation > Hadamard product
Dec 26,2017	The new calculation library is now available. Mathmatics > Area > Area of an arch given height and chord
Dec 20,2017	The new calculation libraries are now available. Mathmatics > Permutation and combination > Circular Permutation Mathmatics > Permutation and combination > Circular Permutation (table) Mathmatics > Permutation and combination > Necklace Permutation Mathmatics > Permutation and combination > Necklace Permutation (table)
Nov 15,2017	The new calculation libraries are now available. Special Function > Brillouin function > Brillouin function Special Function > Brillouin function > Langevin function Special Function > Brillouin function > Brillouin function (chart) Special Function > Brillouin function > Langevin function (chart)
Oct 11,2017	The new calculation libraries are now available. Linear Algebra > Eigenvalues and Eigenvectors > Eigenvalues and Eigenvectors Linear Algebra > Matrix Decomposition > LU Decomposition Linear Algebra > Matrix Decomposition > Singular Value Decomposition
Sep 15,2017	A new category "Linear Algebra" has been added under the "Professional" menu.
Sep 1,2017	A new category "Numerical Integration" has been added under the "Professional" menu.
Aug 22,2017	The new calculation libraries are now available. Probability Function > Bivariate normal distribution > Bivariate normal distribution Probability Function > Bivariate normal distribution > T-function and V-function
Jul 27,2017	The new calculation libraries are now available. Mathematics > Various probability > Roll virtual dice Financial > Others > Sale Price
Jul 24,2017	The new calculation libraries are now available. Health > Exercise > Swimming Calorie Health > Exercise > Sports Calorie
Jul 21,2017	The new calculation library is now available. Financial > Others > Sales Tax (VAT, GST)
Jul 14,2017	The new calculation library is now available. Calendar > Date > How Old Am I? ( Age Calculator )
Jun 8,2017	The new calculation library is now available. Mathematics > Plane geometry > New coordinates by rotation of points
Jan 6,2017	The new calculation library is now available. Mathematics > Volume and surface area > Volume of a truncated circular cone not a frustum

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