Welcome to the IKCEST
Subject database for earthquake
Subject database for drought
Subject database for flood
Subject database for frozen
Subject database for heat wave
Subject database for wild fire
Subject database for ecology & environment
Subject database for urban
Subject database for social media mining
Regional basic database for the Belt and Road
Regional disaster database for the Belt and Road
Regional database for China-Mongolia-Russia Economic Corridor
Regional database for China-Pakistan Economic Corridor
Regional database for Bangladesh-China-India-Myanmar Economic Corridor
China Historical Disaster
Tutorial for GIS
Disaster news Video
Application Using Web GIS
Scientific Data Visulization
Natural Science Research Work
Extreme heat wave
Disaster risk reduction
Online Batch Calculator for Quintic Roots
APP description If the cube of a number x equals a, that is, the quintic of x equals a(\(x^5=a\)), that is, the continuous multip...
Equivalent Fraction online calculator
After a fraction is reduced or expanded, its fraction is equal to the original fraction, which is called equivalent fraction. A lo...
Online calculator that can open multiple times and open the root number
The root sign is a mathematical symbol. The root sign is a symbol used to represent the root of a number or an algebraic expressi...
Proper Fraction Calculator _ Online Calculation Tool
App description True score: A small fraction of a numerator than a denominator is called a true score. The score of the true sco...
Calculate the average online
The calculator, input a few values in the average calculator, can get the total number of the total, the total value, the maximum...
Simplified Fraction Calculator _ Online Calculation Tool
Find the reduced or easiest form of fractions given by integers using Simplify Fraction Calculator, but it cannot calculate decim...
Mathematical expression online calculator
Expression is a combination of numbers, operators, number grouping symbols (brackets), free variables and constraint variables, wh...
2x2 matrix addition subtraction online calculator
A matrix is a table filled with numbers, usually expressed in capital letters. The important thing about a matrix is that it is n...
4x4 fourth-order matrix multiplication online calculator
fourth-order matrix multiplication
Matrix multiplication is an efficient algorithm, which can optimize some one-dimensional recursion to log (n) and find path scheme...
3x3 3rd-order matrix multiplication online calculator
3rd-order matrix multiplication
Matrix A is multiplied by matrix B to get matrix C, the method is that the first row of A is multiplied by the first column of B,...
Cubic Spline Interpolation Calculator_Online Calculation Tool
BCD8421 code and decimal online conversion tool
Wavelength, wave frequency, wave speed online calculator
Irrational number-rational online identification tool
Knowledge Map Service of Major Organization for Disaster Risk Reduction
Elliptical ring surface area and volume online calculator
Gibbs free energy online calculation tool
Air Pollution Index Online Calculator
Excavation trough, no working face, single side grading (soil retaining slope) online calculator
Women's clothing size - size online conversion
How to use
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