A Meshless Method to Determine a Source Term in Heat Equation with Radial Basis Functions

Table 1

Some well-known functions that generate RBFs.

	Definition
Gaussian (GA)	𝜙(𝑟)=exp(−𝑐𝑟^2)
Hardy multiquadrics (MQ)	𝜙(𝑟)=√𝑟^2+𝑐^2
Inverse multiquadrics (IMQ)	𝜙(𝑟)=(√𝑟^2+𝑐^2)^−1
Inverse quadric (IQ)	𝜙(𝑟)=(𝑟^2+𝑐^2)^−1